   Chapter 8.5, Problem 1SWU ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

#### Solutions

Chapter
Section ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
1 views

# In Exercise 1-8, evaluate the trigonometric function. cos 5 π 4

To determine

To calculate: The value of cos5π4.

Explanation

Given Information:

The provided trigonometrical expression is cos5π4.

Formula used:

The trigonometrical identity:

cos(π+θ)=cosθ

Calculation:

Rewrite the provided trigonometrical expression.

cos5π4=cos(π+π4)

Apply the trigonometrical identity of cos(π+θ)

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