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5 August, 04:34

Why is - csc^2 (pi/4) = - 2?

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  1. 5 August, 07:40
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    Sin (pi/4) = 1/sqrt (2)

    csc (pi/4) = sqrt (2)

    csc^2 (pi/4) = 2

    -csc^2 (pi/4) = - 2
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