## Precalculus (6th Edition) Blitzer

$\frac{3\pi}{4}$ radians It is a positive angle and obtained by rotating the terminal side counterclockwise $\frac{3\pi}{4}$ = $\frac{\pi}{2}$ + $\frac{\pi}{4}$ radians. So $\frac{3\pi}{4}$ radians lie in quadrant II. Find the attachment.