# Chapter 14 Trigonometric Graphs, Identities, and Equations - 14.4 Solve Trigonometric Equations - 14.4 Exercises - Skill Practice - Page 935: 4

See below.

#### Work Step by Step

Plugging in the given value: $\pi\sec \pi+\pi=\pi(-1)+\pi=0$ Thus this is indeed a solution.

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