# Trigonometry Skills Checkup

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1) Convert 3π/4 radians to degrees.

2) If cos A = 5/13, find sin A. /

3) If angle x is a 4th quadrant angle, then x + 3π/2 is in the quadrant.

4) Simplify: cos(x) tan(x) =

5) What is the amplitude of the function ƒ(x) = 3 sin(x + π) + 4?