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if A=[a(ij)](2*2) where a(ij)={i+j , i!=...

if `A=[a_(ij)]_(2*2)` where `a_(ij)={i+j , i!=j` and `a_(ij)=i^2-2j ,i=j` then `A^-1` is equal to

A

`(1)/(9)[(4,1),(-1,2)]`

B

`(1)/(9)[(0,-3),(-3,-1)]`

C

`(1)/(9)[(0,3),(3,1)]`

D

None of these

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The correct Answer is:
c
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TARGET PUBLICATION-MATRICES-COMPETITIVE THINKING (Inverse off a matrix )
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  13. If for the matrix A ,\ A^3=I , then A^(-1)= A^2 (b) A^3 (c) A (d) non...

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