{"id":994,"date":"2024-03-22T11:38:05","date_gmt":"2024-03-22T05:38:05","guid":{"rendered":"https:\/\/stage-wp.10minuteschool.com\/?p=994"},"modified":"2024-10-29T14:18:06","modified_gmt":"2024-10-29T08:18:06","slug":"adjoint-matrix","status":"publish","type":"post","link":"https:\/\/10minuteschool.com\/content\/adjoint-matrix\/","title":{"rendered":"\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f, \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u0993 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Adjoint, Singular &#038; Non-singular Matrix)"},"content":{"rendered":"<h2><span style=\"color: #339966;\"><b>\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f (Adjoint Matrix) <\/b><\/span><span style=\"color: #339966;\"><b>, \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 (Singular Matrix) \u0993 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Non-singular Matrix) \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7?<\/b><\/span><\/h2>\n<h3><span style=\"color: #800080;\"><b>\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u0993 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Singular and Non-singular Matrix)<\/b><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u09af\u09a6\u09bf \u0995\u09cb\u09a8\u09cb \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 A \u098f\u09b0 \u09a8\u09bf\u09b0\u09cd\u09a3\u09be\u09af\u09bc\u0995 <\/span><span style=\"font-weight: 400;\">A<\/span><span style=\"font-weight: 400;\"> \u09ac\u09be <\/span><span style=\"font-weight: 400;\">det(A)=0<\/span><span style=\"font-weight: 400;\"> \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 A \u0995\u09c7 \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Singular Matrix) \u09ac\u09b2\u09c7\u0964 \u0986\u09ac\u09be\u09b0 \u09af\u09a6\u09bf \u09a8\u09bf\u09b0\u09cd\u09a3\u09be\u09af\u09bc\u0995 <\/span><span style=\"font-weight: 400;\">A<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09ac\u09be<\/span><span style=\"font-weight: 400;\">\u00a0det(A)\u22600<\/span><span style=\"font-weight: 400;\"> \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0995\u09c7 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Non-singular Matrix) \u09ac\u09b2\u09c7\u0964<\/span><\/p>\n<p><b>\u0989\u09a6\u09be\u09b9\u09b0\u09a3:<\/b> <span class=\"katex-eq\" data-katex-display=\"false\">A=\\begin{bmatrix}\n\n7 &amp; 4\\\\\n\n14 &amp; 8\n\n\\end{bmatrix}<\/span>\u00a0<span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">\\begin{bmatrix}\n\n5 &amp; 6\\\\\n\n10 &amp; 13\n\n\\end{bmatrix}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0996\u09be\u09a8\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">|A|=\\begin{vmatrix}\n\n7 &amp; 4\\\\\n\n14 &amp; 8\n\n\\end{vmatrix}=56-56=0<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09b8\u09c1\u09a4\u09b0\u09be\u0982 A \u09b9\u09b2\u09cb \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">|B|=\\begin{vmatrix}\n\n5 &amp; 6\\\\\n\n10 &amp; 13\n\n\\end{vmatrix}=65-60=5 \\neq 0<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u09b8\u09c1\u09a4\u09b0\u09be\u0982 B \u09b9\u09b2\u09cb \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0964<\/span><\/p>\n<h3><span style=\"color: #800080;\"><b>\u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Inverse matrix of a square matrix)<\/b><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u09a6\u09c1\u0987\u099f\u09bf \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u0997\u09c1\u09a3\u09ab\u09b2 \u09af\u09a6\u09bf \u098f\u0995\u0995 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09b8\u09ae\u09be\u09a8 \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 \u098f\u09a6\u09c7\u09b0 \u098f\u0995\u099f\u09bf\u0995\u09c7 \u0985\u09aa\u09b0\u099f\u09bf\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09ac\u09b2\u09be \u09b9\u09af\u09bc\u0964 \u0985\u09b0\u09cd\u09a5\u09be\u09ce \u09af\u09a6\u09bf \u0995\u09cb\u09a8\u09cb \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 A \u098f\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u0995\u099f\u09bf \u098f\u0995\u0987 \u0995\u09cd\u09f0\u09ae\u09c7\u09b0 \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 B \u09a5\u09be\u0995\u09c7 \u09af\u09c7\u09a8 <\/span><span style=\"font-weight: 400;\">AB=BA=I\u00a0<\/span><span style=\"font-weight: 400;\">\u09b9\u09af\u09bc, (\u09af\u09c7\u0996\u09be\u09a8\u09c7 I \u09b9\u09b2\u09cb \u098f\u0995\u0995 \u09ac\u09be \u0985\u09ad\u09c7\u09a6\u0995 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8) \u09a4\u09ac\u09c7 B \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0995\u09c7 A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09ac\u09b2\u09c7\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0995\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">A^{-1}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cd\u09b0\u0995\u09be\u09b6 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0985\u09aa\u09b0\u09aa\u0995\u09cd\u09b7\u09c7 A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0995\u09c7\u0993 B \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09ac\u09b2\u09c7\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0989\u09b2\u09cd\u09b2\u09c7\u0996\u09cd\u09af \u09af\u09c7, \u09b6\u09c1\u09a7\u09c1 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09ac\u09bf\u09a6\u09cd\u09af\u09ae\u09be\u09a8\u0964<\/span><\/p>\n<p><strong>\u0989\u09a6\u09be\u09b9\u09b0\u09a3: <\/strong><span class=\"katex-eq\" data-katex-display=\"false\">A=\\begin{bmatrix}\n\n\\frac{-5}{2} &amp; 2\\\\\n\n\\frac{3}{2} &amp; -1\n\n\\end{bmatrix}<\/span> <span style=\"font-weight: 400;\">\u0993 <span class=\"katex-eq\" data-katex-display=\"false\">B=\\begin{bmatrix}\n\n2 &amp; 4\\\\\n\n3 &amp; 5\n\n\\end{bmatrix}<\/span><\/span>\u00a0<span style=\"font-weight: 400;\">\u09b9\u09b2\u09c7, <span class=\"katex-eq\" data-katex-display=\"false\">AB=\\begin{bmatrix}\n\n\\frac{-5}{2} &amp; 2\\\\\n\n\\frac{3}{2} &amp; -1\n\n\\end{bmatrix}\\begin{bmatrix}\n\n2 &amp; 4\\\\\n\n3 &amp; 5\n\n\\end{bmatrix}=\\begin{bmatrix}\n\n-5+6 &amp; -10+10\\\\\n\n3-3 &amp; 6-5\n\n\\end{bmatrix}=\\begin{bmatrix}\n\n1 &amp; 0\\\\\n\n0 &amp; 1\n\n\\end{bmatrix}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">BA=\\begin{bmatrix}\n\n2 &amp; 4\\\\\n\n3 &amp; 5\n\n\\end{bmatrix}\\begin{bmatrix}\n\n\\frac{-5}{2} &amp; 2\\\\\n\n\\frac{3}{2} &amp; -1\n\n\\end{bmatrix}=\\begin{bmatrix}\n\n-5+6 &amp; 4-4\\\\\n\n\\frac{-5}{2}+\\frac{15}{2} &amp; 6-5\n\n\\end{bmatrix}=\\begin{bmatrix}\n\n1 &amp; 0\\\\\n\n0 &amp; 1\n\n\\end{bmatrix}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u098f\u0996\u09be\u09a8\u09c7 <\/span><span style=\"font-weight: 400;\">AB=BA=I<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09b8\u09c1\u09a4\u09b0\u09be\u0982, A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 B \u098f\u09ac\u0982 B \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 A \u0985\u09b0\u09cd\u09a5\u09be\u09ce <\/span><span style=\"font-weight: 400;\">A\u00a0=\u00a0B&#8217;\u00a0<\/span><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <\/span><span style=\"font-weight: 400;\">B=A<\/span><span style=\"font-weight: 400;\">\u0964<\/span><\/p>\n<p><b>\u09a6\u09cd\u09b0\u09b7\u09cd\u099f\u09ac\u09cd\u09af: <\/b><span style=\"font-weight: 400;\">\u09a6\u09c1\u0987 \u0995\u09cd\u09f0\u09ae\u09c7\u09b0 \u09ac\u09b0\u09cd\u0997\u09be\u0995\u09be\u09b0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 : <span class=\"katex-eq\" data-katex-display=\"false\">\\begin{bmatrix}\n\na &amp; b\\\\\n\nc &amp; d\n\n\\end{bmatrix}<\/span><\/span>\u00a0<span style=\"font-weight: 400;\">\u098f\u09b0 \u09ac\u09bf\u09aa\u09b0\u09c0\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 <span class=\"katex-eq\" data-katex-display=\"false\">\\frac{1}{ad-bc}\\begin{bmatrix}\n\nd &amp; -b\\\\\n\n-c &amp; a\n\n\\end{bmatrix}<\/span><\/span>\u00a0<span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h3><span style=\"color: #800080;\"><b>\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Adjoint matrix)<\/b><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u09af\u09a6\u09bf \u0995\u09cb\u09a8 \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 <span class=\"katex-eq\" data-katex-display=\"false\">A=(a_{ij})_{n\\times sn}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">\u098f\u09ac\u0982 <span class=\"katex-eq\" data-katex-display=\"false\">C_{ij}<\/span><\/span><span style=\"font-weight: 400;\">, A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u0989\u09aa\u09be\u09a6\u09be\u09a8\u09c7\u09b0 \u09b8\u09b9\u0997\u09c1\u09a3\u0995 \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u0989\u09aa\u09be\u09a6\u09be\u09a8\u0997\u09c1\u09b2\u09cb\u09b0 \u0985\u09a8\u09c1\u09b0\u09c2\u09aa \u09b8\u09b9\u0997\u09c1\u09a3\u0995 \u09a8\u09bf\u09af\u09bc\u09c7 \u0997\u09a0\u09bf\u09a4 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09bf\u09ae\u09cd\u09ac \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u0995\u09c7 A \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 <strong>\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Adjoint matrix)<\/strong> \u09ac\u09b2\u09c7\u0964 \u0987\u09b9\u09be\u0995\u09c7 <\/span><span style=\"font-weight: 400;\">adj(A)\u00a0<\/span><span style=\"font-weight: 400;\">\u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cd\u09b0\u0995\u09be\u09b6 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964 \u0985\u09b0\u09cd\u09a5\u09be\u09ce\u00a0<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">adj(A)=[C_{ij}]_{n\\times n}^T=[C_{ij}]_{n\\times n}<\/span>\n<p><span style=\"font-weight: 400;\"><span class=\"katex-eq\" data-katex-display=\"false\">\\therefore (adj A)_{ij}=C_{ij}=A<\/span>\u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 <span class=\"katex-eq\" data-katex-display=\"false\">a_{ij}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u0989\u09aa\u09be\u09a6\u09be\u09a8\u09c7\u09b0 \u09b8\u09b9\u0997\u09c1\u09a3\u0995\u0964\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0985\u09b0\u09cd\u09a5\u09be\u09ce \u09af\u09a6\u09bf <span class=\"katex-eq\" data-katex-display=\"false\">A=\\begin{bmatrix}\n\na_{11} &amp; a_{12} &amp; a_{13}\\\\\n\na_{21} &amp; a_{22} &amp; a_{23}\\\\\n\na_{31} &amp; a_{32} &amp; a_{33}\n\n\\end{bmatrix}<\/span><\/span>\u00a0<span style=\"font-weight: 400;\">\u09b9\u09af\u09bc \u09a4\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">adj(A)=\\begin{bmatrix}\n\nC_{11} &amp; C_{12} &amp; C_{13}\\\\\n\nC_{21} &amp; C_{22} &amp; C_{23}\\\\\n\nC_{31} &amp; C_{32} &amp; C_{33}\n\n\\end{bmatrix}<\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u09af\u09c7\u0996\u09be\u09a8\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">C_{ij},A<\/span><\/span><span style=\"font-weight: 400;\"> \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 <span class=\"katex-eq\" data-katex-display=\"false\">a_{ij}<\/span><\/span><span style=\"font-weight: 400;\">\u00a0\u0989\u09aa\u09be\u09a6\u09be\u09a8\u09c7\u09b0 \u09b8\u09b9\u0997\u09c1\u09a3\u0995\u0964<\/span><\/p>\n<span class=\"katex-eq\" data-katex-display=\"false\">C_{11}=\\begin{bmatrix}\n\na_{22} &amp; a_{23}\\\\\n\na_{32} &amp; a_{33}\n\n\\end{bmatrix}=a_{22}a_{33}-a_{23}a_{32}\\\\\n\nC_{12}=-\\begin{bmatrix}\n\na_{21} &amp; a_{23}\\\\\n\na_{31} &amp; a_{33}\n\n\\end{bmatrix}=a_{21}a_{23}-a_{33}a_{21}\\\\\n\nC_{13}=\\begin{bmatrix}\n\na_{21} &amp; a_{22}\\\\\n\na_{31} &amp; a_{32}\n\n\\end{bmatrix}=a_{21}a_{32}-a_{22}a_{31}\\\\\n\nC_{21}=-\\begin{bmatrix}\n\na_{12} &amp; a_{13}\\\\\n\na_{32} &amp; a_{33}\n\n\\end{bmatrix}=a_{13}a_{32}-a_{12}a_{33}\\\\\n\nC_{22}=\\begin{bmatrix}\n\na_{11} &amp; a_{13}\\\\\n\na_{31} &amp; a_{33}\n\n\\end{bmatrix}=a_{11}a_{33}-a_{13}a_{31}\\\\\n\nC_{23}=-\\begin{bmatrix}\n\na_{11} &amp; a_{12}\\\\\n\na_{31} &amp; a_{32}\n\n\\end{bmatrix}=a_{12}a_{31}-a_{11}a_{32}\\\\\n\nC_{31}=\\begin{bmatrix}\n\na_{12} &amp; a_{13}\\\\\n\na_{22} &amp; a_{23}\n\n\\end{bmatrix}=a_{12}a_{23}-a_{22}a_{13}\\\\\n\nC_{32}=-\\begin{bmatrix}\n\na_{11} &amp; a_{13}\\\\\n\na_{21} &amp; a_{23}\n\n\\end{bmatrix}=a_{13}a_{21}-a_{11}a_{23}\\\\\n\nC_{33}=\\begin{bmatrix}\n\na_{11} &amp; a_{12}\\\\\n\na_{21} &amp; a_{22}\n\n\\end{bmatrix}=a_{11}a_{22}-a_{12}a_{21}<\/span>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter\" src=\"https:\/\/media.geeksforgeeks.org\/wp-content\/uploads\/20230607182057\/Adjoint-of-a-Matrix.png\" alt=\"\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\" width=\"466\" height=\"470\" \/><\/p>\n<h3><span style=\"color: #800080;\"><b>\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f (Adjoint Matrix) \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8\u09c7\u09b0 \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af:<\/b><\/span><\/h3>\n<ol>\n<li><span style=\"font-weight: 400;\">\u09af\u09a6\u09bf A, n \u0995\u09cd\u09b0\u09ae\u09c7\u09b0 \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">A(adjA)=(adjA)A=|A|I_n<\/span><\/span><\/li>\n<li>\u09af\u09a6\u09bf A, n \u0995\u09cd\u09b0\u09ae\u09c7\u09b0 \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ac\u09b0\u09cd\u0997 <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.youtube.com\/watch?v=w5NRpyGBPWA&amp;list=PL0dr4HGr8HPjbTz1tOzTYdUTKm8A49qAf\" target=\"_blank\" rel=\"noopener\">\u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8<\/a><\/span> \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">A(adjA)=(adjA)A=0<\/span>\u00a0(\u09b6\u09c1\u09a8\u09cd\u09af \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8)<\/li>\n<li>\u09af\u09a6\u09bf A, n \u0995\u09cd\u09b0\u09ae\u09c7\u09b0 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 <span class=\"katex-eq\" data-katex-display=\"false\">|adjA|=|A|^{n-1}<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<div class=\"x1tlxs6b x1g8br2z x1gn5b1j x230xth x14ctfv x1okitfd x6ikm8r x10wlt62 x1mzt3pk x1y1aw1k xn6708d xwib8y2 x1ye3gou x1n2onr6 x13faqbe x1vjfegm\" role=\"none\">\n<div class=\"\">\n<div class=\"x9f619 x1n2onr6 x1ja2u2z __fb-light-mode\" role=\"none\">\n<hr \/>\n<p dir=\"auto\" role=\"none\">\n<p class=\"x6prxxf x1fc57z9 x1yc453h x126k92a xzsf02u\" dir=\"auto\" role=\"none\"><em><strong>\u098f\u0987\u099a\u098f\u09b8\u09b8\u09bf \u0993 \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0\u09cd\u09a5\u09c0\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u0995\u09cb\u09b0\u09cd\u09b8\u09b8\u09ae\u09c2\u09b9\u0983<\/strong><\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n<ul>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/hsc-25-online-batch-2-bangla-english-ict\/\">HSC 25 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09ac\u09cd\u09af\u09be\u099a \u09e8.\u09e6 (\u09ac\u09be\u0982\u09b2\u09be, \u0987\u0982\u09b0\u09c7\u099c\u09bf, \u09a4\u09a5\u09cd\u09af \u0993 \u09af\u09cb\u0997\u09be\u09af\u09cb\u0997 \u09aa\u09cd\u09b0\u09af\u09c1\u0995\u09cd\u09a4\u09bf)<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/hsc-26-online-batch-bangla-english-ict\/\">HSC 26 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09ac\u09cd\u09af\u09be\u099a (\u09ac\u09be\u0982\u09b2\u09be, \u0987\u0982\u09b0\u09c7\u099c\u09bf, \u09a4\u09a5\u09cd\u09af \u0993 \u09af\u09cb\u0997\u09be\u09af\u09cb\u0997 \u09aa\u09cd\u09b0\u09af\u09c1\u0995\u09cd\u09a4\u09bf)<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/hsc-2025-online-batch\/\">HSC 25 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09ac\u09cd\u09af\u09be\u099a (\u09ab\u09bf\u099c\u09bf\u0995\u09cd\u09b8, \u0995\u09c7\u09ae\u09bf\u09b8\u09cd\u099f\u09cd\u09b0\u09bf, \u09ae\u09cd\u09af\u09be\u09a5, \u09ac\u09be\u09df\u09cb\u09b2\u099c\u09bf)<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/hsc-2026-online-batch\/\">HSC 26 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09ac\u09cd\u09af\u09be\u099a (\u09ab\u09bf\u099c\u09bf\u0995\u09cd\u09b8, \u0995\u09c7\u09ae\u09bf\u09b8\u09cd\u099f\u09cd\u09b0\u09bf, \u09ae\u09cd\u09af\u09be\u09a5, \u09ac\u09be\u09df\u09cb\u09b2\u099c\u09bf)<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/medical-admission-course\/\">\u09ae\u09c7\u09a1\u09bf\u0995\u09c7\u09b2 \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u0995\u09cb\u09b0\u09cd\u09b8 &#8211; \u09e8\u09e6\u09e8\u09ea<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/dhaka-university-a-unit-admission-course\/\">\u09a2\u09be\u0995\u09be \u09ad\u09be\u09b0\u09cd\u09b8\u09bf\u099f\u09bf A Unit \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u0995\u09cb\u09b0\u09cd\u09b8 &#8211; \u09e8\u09e6\u09e8\u09ea<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/dhaka-university-b-unit-admission-course\/\">\u09a2\u09be\u0995\u09be \u09ad\u09be\u09b0\u09cd\u09b8\u09bf\u099f\u09bf B Unit \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u0995\u09cb\u09b0\u09cd\u09b8 &#8211; \u09e8\u09e6\u09e8\u09ea<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/buet-ques-solve\/\">\u09ac\u09c1\u09df\u09c7\u099f \u0995\u09cb\u09b6\u09cd\u099a\u09c7\u09a8 \u09b8\u09b2\u09ad \u0995\u09cb\u09b0\u09cd\u09b8<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/gst-a-unit-admission-course\/\">\u0997\u09c1\u099a\u09cd\u099b A Unit \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u0995\u09cb\u09b0\u09cd\u09b8 &#8211; \u09e8\u09e6\u09e8\u09ea<\/a><\/span><\/li>\n<li role=\"none\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/gst-b-unit-admission-course\/\">\u0997\u09c1\u099a\u09cd\u099b B Unit \u098f\u09a1\u09ae\u09bf\u09b6\u09a8 \u0995\u09cb\u09b0\u09cd\u09b8 &#8211; \u09e8\u09e6\u09e8\u09ea<\/a><\/span><\/li>\n<\/ul>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><em><strong>\u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u09b8\u09cd\u0995\u09bf\u09b2 \u09a1\u09c7\u09ad\u09c7\u09b2\u09aa\u09ae\u09c7\u09a8\u09cd\u099f \u0995\u09cb\u09b0\u09cd\u09b8\u09b8\u09ae\u09c2\u09b9\u0983<\/strong><\/em><\/p>\n<ul>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/study-abroad-complete-guideline\/\">\u09ac\u09bf\u09a6\u09c7\u09b6\u09c7 \u0989\u099a\u09cd\u099a\u09b6\u09bf\u0995\u09cd\u09b7\u09be: Study Abroad Complete Guideline<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/student-hacks\/\">Student Hacks<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/ielts-course\/\">IELTS Course by Munzereen Shahid<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/english-grammar-course\/\">Complete English Grammar Course<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/ms-bundle\/\"> Microsoft Office 3 in 1 Bundle<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/ghore-boshe-freelancing\/\">\u0998\u09b0\u09c7 \u09ac\u09b8\u09c7 Freelancing<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/facebook-marketing\/\">Facebook Marketing<\/a><\/span><\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/10minuteschool.com\/product\/adobe-4-in-1-bundle\/\">Adobe 4 in 1 Bundle<\/a><\/span><\/li>\n<\/ul>\n<hr \/>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><em>\u09e7<\/em><em>\u09e6 \u09ae\u09bf\u09a8\u09bf\u099f \u09b8\u09cd\u0995\u09c1\u09b2\u09c7\u09b0 \u0995\u09cd\u09b2\u09be\u09b8\u0997\u09c1\u09b2\u09cb \u0985\u09a8\u09c1\u09b8\u09b0\u09a3 \u0995\u09b0\u09a4\u09c7 \u09ad\u09bf\u099c\u09bf\u099f: <span style=\"color: #993300;\"><strong><a style=\"color: #993300;\" href=\"https:\/\/10minuteschool.com\/?ref=https%3A%2F%2Fblog.10minuteschool.com%2Fwordpress%2F&amp;post_id=78178&amp;blog_category_id=700\">www.10minuteschool.com<\/a><\/strong><\/span><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0985\u09cd\u09af\u09be\u09a1\u099c\u09af\u09bc\u09c7\u09a8\u09cd\u099f (Adjoint Matrix) , \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 (Singular Matrix) \u0993 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Non-singular Matrix) \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7? \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u0993 \u0985\u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Singular and Non-singular Matrix) \u09af\u09a6\u09bf \u0995\u09cb\u09a8\u09cb \u09ac\u09b0\u09cd\u0997 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 A \u098f\u09b0 \u09a8\u09bf\u09b0\u09cd\u09a3\u09be\u09af\u09bc\u0995 A \u09ac\u09be det(A)=0 \u09b9\u09af\u09bc \u09a4\u09ac\u09c7 A \u0995\u09c7 \u09ac\u09cd\u09af\u09a4\u09bf\u0995\u09cd\u09b0\u09ae\u09c0 \u09ae\u09cd\u09af\u09be\u099f\u09cd\u09b0\u09bf\u0995\u09cd\u09b8 (Singular Matrix)<\/p>\n<p> <a class=\"redmore\" href=\"https:\/\/10minuteschool.com\/content\/adjoint-matrix\/\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4256,3037,50,3026],"tags":[],"_links":{"self":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/994"}],"collection":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/comments?post=994"}],"version-history":[{"count":10,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/994\/revisions"}],"predecessor-version":[{"id":16091,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/posts\/994\/revisions\/16091"}],"wp:attachment":[{"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/media?parent=994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/categories?post=994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/10minuteschool.com\/content\/wp-json\/wp\/v2\/tags?post=994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}