SOLUTION: Suppose that sin θ = 5/13 and that θ is a Quadrant II angle. (a) Find the exact value of cos θ. (b) Find the exact value of sin 2θ.

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Question 886892: Suppose that sin θ = 5/13 and that θ is a Quadrant II angle.

(a) Find the exact value of cos θ.

(b) Find the exact value of sin 2θ.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose that sin θ = 5/13 and that θ is a Quadrant II angle.

(a) Find the exact value of cos θ.
cos%28t%29+=+sqrt%281+-+sin%5E2%28t%29%29

(b) Find the exact value of sin 2θ.
sin(2t) = 2sin(t)cos(t)