Use a unit circle diagram to find exact values for ,

MATHEMATICS · Multi-part · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

Use a unit circle diagram to find exact values for

\sin \theta

\cos \theta

, and

\tan \theta

for

\theta

equal to: (1)

\frac{\pi}{4}

(2)

\frac{3\pi}{4}

(3)

\frac{7\pi}{4}

(4)

\pi

(5)

-\frac{3\pi}{4}