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If A^(-1) = ((3,1),(-1,2)),find A....

If `A^(-1) = ((3,1),(-1,2))`,find A.

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The correct Answer is:
`((1,3),(4,2))`
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CHHAYA PUBLICATION-ADJOINT AND INVERSE OF A MATRIX AND SOLUTION OF LINEAR SIMULTANEOUS EQUATIONS BY MATRIX METHOD-ASSERTION-REASON TYPE
  1. If A^(-1) = ((3,1),(-1,2)),find A.

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  2. If A = [(3+2i, i),(-i,3-2i)] then find A^-1

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  3. If A is a 3×3 square matrix with |A|=5 if B=4A^2then find |B|

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