10th Class Mathematics Introduction to Trigonometry Question Bank Trigonometry

  • question_answer
    Which one of the following is correct?

    A) \[{{\sec }^{2}}\alpha =1-{{\tan }^{2}}\alpha \]

    B) \[{{\sin }^{2}}\alpha =1+{{\cos }^{2}}\alpha \]

    C) \[\tan \,\alpha \,\,\cot =1\]

    D) None of these

    Correct Answer: C

    Solution :

    Not available


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