Question

Solve the equation on the
interval [0, 2pi).
3 sin x = sin x + 1

Answer 1

π/6 , 7π/6

Explanation:

3sinx = sinx + 1 ⇒ 2sinx = 1 ⇒ sinx = 1/2

At which value(s) of x does sinx equal 1/2?

x = arcsin(1/2) at π/6 and 5π/6