12th Class Mathematics Sample Paper Maths Olympiad Model Paper-5

  • question_answer
         From the following find the correct relation

    A)  \[(AB)'=A'B'\]               

    B)  \[(AB)'=B'A'\]

    C)  \[{{A}^{-1}}=\frac{adjA}{A}\]                       

    D)  \[{{(AB)}^{-1}}={{A}^{-1}}{{B}^{-1}}\]

    E)  None of these

    Correct Answer: B


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