precalc

Suppose that cos θ = 12/13 and that θ is a Quadrant IV angle.
(a) Find the exact value of sin θ. Show work.
(b) Find the exact value of sin 2θ. Show work.

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  1. this is very like the others. By this time you should have some idea how to do them. If you get stuck, some back with your work.

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