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    Question

    if a sin 45 ˚ = b cosec

    60 ˚ then find the value of a⁴/b⁴
    A 63/13 Correct Answer Incorrect Answer
    B 64/9 Correct Answer Incorrect Answer
    C 65/9 Correct Answer Incorrect Answer
    D 74/5 Correct Answer Incorrect Answer

    Solution

    a sin 45 ˚ = b cosec 60 ˚ or a x (1/√2) = b x (2/√3)`` or a/b = √2 x (2/√3) `` so, (a/b)⁴ = (√2 x (2/√3) )⁴ = 16 x (4/9) = 64/9

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