Answer
$-\frac{13\pi}{4}, -\frac{5\pi}{4}$, $\frac{3\pi}{4}, \frac{11\pi}{4}, \frac{19\pi}{4}$
Work Step by Step
Answer may vary.
Step 1. We can identify the given point is in quadrant II with an angle $\frac{3\pi}{4}$ from the $+x$-axis.
Step 2. We can find two negative equivalent angles as $-\frac{13\pi}{4}, -\frac{5\pi}{4}$
Step 3. We can find three positive equivalent angles as $\frac{3\pi}{4}, \frac{11\pi}{4}, \frac{19\pi}{4}$