   Chapter 11.CT, Problem 2CT 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

For the right triangle shown, express each ratio as a fraction in lowest terms:a) cos β b) sin α

To determine

a

To express:

The ratio cos β in the lowest term.

Explanation

Definition:

In a right triangle, the cosine ratio for an acute angle is the ratio adjacent sidehypotenuse.

Given:

The right triangle shown below

Calculation:

From the figure given,

For the angle β, adjacent side = 6 and hypotenuse = 10

To determine

b

To express:

The given sin α in the lowest term.

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