# Another problem in precalculus

**Question description**

1.)Sketch one cycle of f(x)=2 sin 3x (for this problem, you can send a picture of it on a graph paper)

2.) find a if a is the angle between 180degrees and 270degrees whose cosine is -sqroot of 3/2.

3.) find a if a is the largest acute angle of a right triangle that has a hypotenuse with a length of 19 meters and a leg of 8 meters.

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