π2,3π2,5π2\frac{\pi}{2}, \frac{3 \pi}{2}, \frac{5 \pi}{2}2π,23π,25π
0,π2,π,3π20, \frac{\pi}{2}, \pi, \frac{3 \pi}{2}0,2π,π,23π
0,π,2π,3π0, \pi, 2 \pi, 3 \pi0,π,2π,3π
π4,3π4,5π4\frac{\pi}{4}, \frac{3 \pi}{4}, \frac{5 \pi}{4}4π,43π,45π