10th Class Mathematics Introduction to Trigonometry Question Bank Trigonometry

  • question_answer
    The value of \[{{(cos\alpha +sin\alpha )}^{2}}+{{(cos\alpha -sin\alpha )}^{2}}\] is

    A) 2

    B) -2

    C) 1

    D) 0

    Correct Answer: A

    Solution :

    Not available


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