Question

    If asin³  X + bcos³  X = sinXcosX and asinX = bcosX,

    then find the value of a² + b², provided that x is neither 0° nor 90°.
    B 1 Correct Answer Incorrect Answer
    C a² - b² Correct Answer Incorrect Answer
    D a² + b² Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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