# Chapter 6 - 6.2 - Right Triangle Trigonometry - 6.2 Exercises - Page 442: 42

The identity is verified. $cos~θ~sec~θ=1$

#### Work Step by Step

Use: $sec~θ=\frac{1}{cos~θ}$ $cos~θ~sec~θ=cos~θ\frac{1}{cos~θ}=1$

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