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

  • question_answer
    \[\frac{d}{dx}\left[ \cos {{(1-{{x}^{2}})}^{2}} \right]=\]

    A)  \[-2x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]

    B)  \[-4x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]

    C)  \[4x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]

    D)  \[-2\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]

    E)  None of these

    Correct Answer: C

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