Question

    2[sin x – cos x]4 + 6[sin x + cos

    x]2 + 5[sin6 x + cos6 x]= ?
    A 6 Correct Answer Incorrect Answer
    B 4 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 13 Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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