trigonometry

I have the trigonometric equations:

y=3+2sec(pi/8)(x-3)

y=12+4cot(pi/6)(x-1)

y=3+7csc(pi/4)(x-1)

how do I make these into sine, cosine, and tangent equations so that I can work with them more easily?

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  1. Is the last parentheses part of the angle?
    for example, do you mean

    y=3+2sec[(pi/8)(x-3)] ?

    If not, just substitute 1.0824 for sec pi/8 etc.

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