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Verify A (adj A)=(adj A)A=|A|I in the fo...

Verify A (adj A)=(adj A)A=|A|I in the following matrices.
`[[2,3],[-4,-6]]`

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V PUBLICATION-DETERMINANT-QUESTION BANK
  1. Find the adjoint of each of the matrices [[1 , 2],[ 3, 4]]

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  2. Find the adjoint of the matrix [[1 , -1, 2],[ 2, 3, 5],[ -2, 0, ...

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  3. Verify A (adj A)=(adj A)A=|A|I in the following matrices. [[2,3],[-4,-...

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  4. Find the inverse of the following matrics. [[2,-2],[4,3]]

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  5. Find the inverse of the following matrics. [[-1,5],[-3,2]]

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  6. Find the inverse of each of the matrices [[1, 2, 3],[ 0, 2, 4],[...

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  7. Find the inverse of the following A=[[1,0,0],[3,3,0],[5,2,-1]]

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  8. Find the inverse of each of the matrices [[2 , 1 , 3],[ 4, -1, 0],[...

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  9. Find the inverse of the following A=[[1,-1,2],[0,2,-3],[3,-2,4]]

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  10. Find the inverse of each of the matrices. [[1, 0, 0],[ 0 , cos alph...

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  11. Let A=[[3 , 7],[ 2, 5]] and B=[[6 , 8],[ 7, 9]] Verify that (A B)...

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  12. If A =[[3,1],[-1,2]],show that A^2-5A + 7I=0 Hence, find A^(-1)

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  13. For the matrix A=[[3,2],[1,1]],find the numbers a and b such that A^2+...

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  14. For the matrix A=[[1,1,1],[1,2,-3],[2,-1,3]] show that A^3-6A^2+5A+11I...

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  15. Let A be a non-singular square matrix of order 3xx3.Then |adj A| is .....

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  16. If A is an invertible matrix of order 2, then det(A^(-1))=

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  17. Solve the system of equations '2 x+5 y=1' '3 x+2 y=7'

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  18. If A=[[3,-2,3],[2,1,-1],[4,-3,2]] Solve the linear equations 3x-2y...

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  19. The sum of three numbers is 6 . If we multiply third number by3 ańd ad...

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  20. classify the following system of equations as consistent or inconsiste...

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