pre cal

how do you work out cot squared feta - CSC squared feta?

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  1. Is feta an Italian version of Greek Theta?

    ctn^2T-csc^2T
    cos^2/sin^2 - 1/sin^2

    (cos^2T-1)/(sin^2T)

    but sin^2T+cos^2T=1 so
    -sin^2T/Sin^2T= -1

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    bobpursley

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