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10th Class Mathematics Introduction to Trigonometry Question Bank Trigonometry

  • question_answer
    If \[\sin \alpha =\frac{1-{{x}^{2}}}{1+{{x}^{2}}}\], then the value of tan \[\alpha \] is

    A) \[\frac{2x}{1-{{x}^{2}}}\]

    B) \[\frac{1-{{x}^{2}}}{2x}\]

    C) \[\frac{1}{1+{{x}^{2}}}\]

    D) \[\frac{1}{1-{{x}^{2}}}\]

    Correct Answer: B

    Solution :

    Not available


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