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12th Class Mathematics Sample Paper Maths Olympiad Model Paper-8

  • question_answer
    \[\frac{d}{dx}\sqrt{\frac{1-\sin 2x}{1+\sin 2x}}=\]

    A)  \[{{\sec }^{2}}x\]                   

    B)  \[-{{\sec }^{2}}\,\,\left( \frac{\pi }{4}-x \right)\]

    C)  \[{{\sec }^{2}}\,\,\left( \frac{\pi }{4}+x \right)\]

    D)  \[{{\sec }^{2}}\,\,\left( \frac{\pi }{4}-x \right)\]

    E)  None of these

    Correct Answer: B

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