JEE Main & Advanced Mathematics Trigonometric Identities Question Bank Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

  • question_answer
    Which of the following relations is correct [WB JEE 1991]

    A) \[\sin 1<\sin 1{}^\circ \]

    B) \[\sin 1>\sin 1{}^\circ \]

    C) \[\sin 1=\sin 1{}^\circ \]

    D) \[\frac{\pi }{180}\sin \,\,\,1\,=\sin \,\,\,{{1}^{o}}\]

    Correct Answer: B

    Solution :

    The true relation is \[\sin 1>\sin 1{}^\circ \] Since value of \[\sin \theta \]is increasing\[\left[ 0\to \frac{\pi }{2} \right]\].


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