10th Class Mathematics Introduction to Trigonometry Question Bank Trigonometry

  • question_answer
    \[{{(cosA+sinA)}^{2}}-{{(cosA-sinA)}^{2}}\] is equal to

    A) -1

    B) 2

    C) 0

    D) 2 sin 2A  

    Correct Answer: D

    Solution :

    Not available


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