Solve cot(x)=tan(x)\cot(x) = \tan(x)cot(x)=tan(x) for x∈[0,2π]x \in [0, 2\pi]x∈[0,2π].
0,π,2π0, \pi, 2\pi0,π,2π
π4,3π4,5π4,7π4\frac{\pi}{4}, \frac{3\pi}{4}, \frac{5\pi}{4}, \frac{7\pi}{4}4π,43π,45π,47π
π4,5π4\frac{\pi}{4}, \frac{5\pi}{4}4π,45π
π2,3π2\frac{\pi}{2}, \frac{3\pi}{2}2π,23π