### Home > PC3 > Chapter 8 > Lesson 8.2.1 > Problem 8-61

8-61.

There are no buttons for secant, cosecant, or cotangent on a calculator. In order to evaluate these expressions, the definition of the reciprocal function needs to be utilized. Use a calculator to evaluate each of the expressions below. The first answer is given as a check. All angles are in radians.