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    Question

    Simplify: sin (A + B) sin (A -

    B)
    A sin┬▓ A - sin┬▓ B Correct Answer Incorrect Answer
    B cos┬▓ A - cos┬▓ B Correct Answer Incorrect Answer
    C sin┬▓ A + sin┬▓ B Correct Answer Incorrect Answer
    D cos 2A Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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