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adj AB -(adj B)(adj A) =...

`adj AB -(adj B)(adj A) =`

A

`adj A-adj B`

B

1

C

0

D

non of these

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The correct Answer is:
c
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If A is a square matrix such that A(adj A)=[(4,0,0),(0,4,0),(0,0,4)] , then (|adj (adj A)|)/(|adj A|) is equal to

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If A=[[1,0,-1],[3,4,5],[0,-6,-7]] , verify that A.(adj A) = (adj A). A= |A|.I.

If A is order 3 square matrix such that |A|=2 , then |"adj (adj (adj A))"| is

Let A be a 3 xx 3 matrix such that adj A = [{:(,2,-1,1),(,-1,0,2),(,1,-2,-1):}] and B =adj (adj A) . If |A| = lambda and |(B^(-1))^T| = mu then the ordered pair (|lambda|, mu) is equal to

A and B are two matrices of same order 3 xx 3 , where A=[{:(1,2,3),(2,3,4),(5,6,8):}],B=[{:(3,2,5),(2,3,8),(7,2,9):}] Value of |adj (adj adj( adj A)))| is

Find the adjoint of the given matrix and verify in each case that A.(adj A)=(adj A).A=|A\|.I. [(cos a,sin a),(sin a,cos a)]

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TARGET PUBLICATION-MATRICES-COMPETITIVE THINKING (Inverse off a matrix )
  1. If the adjoint of a 3 3 matrix P is 1 4 4 2 1 7 1 1 3 , then the po...

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  2. Let A be a 2xx2 matrix Statement -1 adj (adjA)=A Statement-2 abs(a...

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  3. adj AB -(adj B)(adj A) =

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  4. If A=[(2x,0),(x,x)] and A^(-1)=[(1,0),(-1,2)] then x equals to

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  5. If A=[(x,-2),(3,7)] and A^(-1)=[(7/34,1/17),((-3)/34,2/17)],then the v...

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  6. Let A =[(1,-1,1),(2,1,-3),(1,1,1)] and 10B=[(4,2,2),(-5,0,alpha),(...

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  7. If A=[(5,4),(3,2)] then A^(-1) is equal to

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  8. The inverse of matrix A=[[2, -3], [-4, 2]] is

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  9. If U=[((1)/(sqrt2),(-1)/(sqrt2)),((1)/(sqrt2),(1)/(sqrt2))], then U^(-...

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  10. If A=[{:(a, b), (c, d):}] " then " A^(-1) = .

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  11. The invrse of the matrix [(2,0,0),(0,3,0),(0,0,4)] is

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  12. If A=[((k)/(2),0,0),(0,(l)/(2),0),(0,0,(m)/(4))] and A^(-1)= [((1)/(2)...

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  13. What is the inverse of A=[{:(0,0,1),(0,1,0),(1,0,0):}]?

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  14. If A=[(1,-1,0),(1,0,0),(0,0,-1)], then A^(-1) is

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  15. The inverse of the matrix [(1,0,0),(3,3,0),(5,2,-1)] is

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  16. The inverse matrix of A=[(0,1,2),(1,2,3),(3,1,1)] is

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  17. The inverse of the matrix [(1,0,0),(a,1,0),(b,c,1)] is (A) [(1,0,0),(-...

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  18. If A=[(3,-3,4),(2,-3,4),(0,-1,1)], then A^(-1)=

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  19. if A=[a(ij)](2*2) where a(ij)={i+j , i!=j and a(ij)=i^2-2j ,i=j then A...

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  20. The element of second row and third column in the inverse of [[1, 2, 1...

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