# How do you solve #5sin^2x-8sinx=3# in the interval [0,360]?

##### 1 Answer

May 1, 2018

#### Explanation:

Solve the above quadratic equation for sin x.

Since a + b + c = 0, the shortcut gives:

sin x = 1 and

a. sin x = 1 -->

b.

Calculator and unit circle give 2 solutions: