SOLUTION: Given that cos theta = -5/13 with theta in quadrant II, find tan 2 theta

Question 876536: Given that cos theta = -5/13 with theta in quadrant II, find tan 2 theta
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Given that cos theta = -5/13 with theta in quadrant II, find tan 2 theta
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You are working with a (5-12-13) reference right triangle in quadrant II

Calculator check:
cos(theta)=-5/13
theta≈112.62
2theta≈225.24}}}
tan(2theta)≈tan(225.24)≈1.0084�
exact value as calculated=120/119≈1.0084�
let me know if my answer is correct and the procedure is understandable.
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