Answer:
x = pi / 2 or pi / 6 or 5 pi / 6
Step-by-step explanation:
2 cos x sin x –cos x = 0
cos x ( 2 sin x – 1) = 0
cos x = 0 or 2 sin x – 1 = 0
x = pi/2 or sinx = 1/2
x= pi /2 or x = pi/6 or pi-pi/6
x = pi / 2 or pi / 6 or 5 pi / 6
as for sinx = k
if x is a solution, pi-x is also a solution
