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प्रश्न
Find the adjoint of matrix A = `[(6, 5),(3, 4)]`
उत्तर
A = `[(6, 5),(3, 4)]`
A11 = (–1)1+1 M11 = M11 = 4
A12 = (–1)1+2 M12 = – M12 = – 3
A21 = (–1)2+1 M21 = – M21 = – 5
A22 = (–1)2+2 M22 = M22 = 6
adj A = `[("A"_11, "A"_12),("A"_21, "A"_22)]^"T"`
= `[(4, -3),(-5, 6)]^"T"`
= `[(4, -5),(-3, 6)]`
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