### Home > PC3 > Chapter 2 > Lesson 2.3.2 > Problem2-140

2-140.

Solve the following equations on the specified domain.

1. $2\cos(x)-\sqrt{3}=0$ for $0\le x<2\pi$

$\cos(x)=\frac{\sqrt{3}}{2}$

1. $2\cos(x)-\sqrt{3}=0$, for all real $x$

Add $+2\pi n$ to your solution(s) from part (a).