Chapter 9 - Section 9.2 - Direction Fields and Euler''s Method - 9.2 Exercises - Page 597: 1

B) $y=0.5, y=1.5$

A) See graph. B) the equilibrium solution are obtained by taking $\cos\pi y = 0$ $=> \cos\pi y = 0$ $=>\pi y = \frac{\pi}{2}, \frac{3\pi}{2}$ $=>y= \frac{1}{2}, \frac{3}{2}$ Hence, the equilibrium solutions are $y=0.5, y=1.5$