Answer: B
Step-by-step explanation:
(sinx)(cosx) = 0
Set each factor equal to zero and solve:
sinx = 0
cosx = 0
Now, look at the Unit circle to see when this occurs:
sin x = 0 at: 0π and π
cos x = 0 at: [tex]\frac{\pi}{2}[/tex] and [tex]\frac{3\pi}{2}[/tex]
x = 0π, [tex]\frac{\pi}{2}[/tex], π, [tex]\frac{3\pi}{2}[/tex]
