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  3. 10th Class
  4. Mathematics
  5. Introduction to Trigonometry

10th Class Mathematics Introduction to Trigonometry Question Bank Case Based MCQs - Introduction to Trigonometry

  • question_answer
    The value of \[{{\cot }^{2}}\theta -\cos e{{c}^{2}}\theta \] is

    A) -1

    B) 0

    C) 1

    D) 2

    Correct Answer: A

    Solution :

    \[{{\cot }^{2}}\theta -\cos e{{c}^{2}}\theta =-1\]
                \[\left[ \because \,\,\cos e{{c}^{2}}\theta -{{\cot }^{2}}\theta =1 \right]\]


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