math

(sinx)^(1/2)=cosx
x is between 0 and 90
What is sinx

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  1. sinx = cos^2x
    sinx = 1-sin^2x
    sin^2x + sinx - 1 = 0

    now solve for sinx, and pick the positive solution.

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  2. Hey, one of my favourite numbers.
    sinx = .618033989..
    which is the decimal part of the Golden Ratio !
    Neat!

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  3. the nice thing about Ø is that

    Ø-1 = 1/Ø

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