### Home > PC > Chapter 6 > Lesson 6.2.2 > Problem 6-86

6-86.

Now consider the equation

Solve the equation for the smallest positive value of

(in radians). If you are having a problem getting started, let.Substituting '

' into the equation.Using a calculator,

.

Substitute back to solve for.Add

to your graph. Use the symmetry of your graph to find the next positive value of where. Check your results by graphing

and on your graphing calculator.