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If A^(-1)=[(3,-1, 1),(-15, 6,-5),( 5,-2,...

If `A^(-1)=[(3,-1, 1),(-15, 6,-5),( 5,-2, 2)]`and `B=[(1 ,2,-2),(-1, 3, 0),( 0,-2, 1)]`, find `(A B)^(-1)`.

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We know that `(AB) ^( −1) =B ^( −1) A ^( −1)` .....(1)
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NCERT-DETERMINANTS-MISCELLANEOUS EXERCISE
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  19. If A^(-1)=[(3,-1, 1),(-15, 6,-5),( 5,-2, 2)]and B=[(1 ,2,-2),(-1, 3, 0...

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