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October 25, 2014

Homework Help: trigonometry

Posted by Alonso on Tuesday, December 18, 2012 at 10:58am.

5. If cot 2θ = 5/12 with 0 ≤ 2θ ≤ π , find cosθ, sinθ, and tanθ

8. Find the exact value of sin2a if cosa = 4/5(a in Quadrant I)

13. Find the exact value of tan2 if sinB = 5/13 (B in quadrant II)

14. Solve sin 2x + sin x = 0 for 0 ≤ x ≤ 2π.

21. Write 2sin37°sin26° as a sum (or difference).

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