   Chapter 11.2, Problem 13E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

In Exercise 9 to 16, use a calculator to find the indicated cosine ratio to four decimal places. cos 90 ∘

To determine

To find:

To find cos90.

Explanation

Consider the following value, cos90.

Using a scientific calculator in degree mode, follow the following key sequence,

90cos0

Using a graphing calculator in degree mode, follow the following key sequence,

<

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