Answer
$0,\frac{\pi}{4},\frac{5\pi}{4}$
Work Step by Step
Step 1. The equation has been factored. Thus $tan\theta=1$ or $sec\theta=1$
Step 2. For $tan\theta=1$, we have $\theta=\frac{\pi}{4},\frac{5\pi}{4}$
Step 3. For $sec\theta=1$, we have $cos\theta=1$ and $\theta=0$
