   Chapter 11.CT, Problem 6CT ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
1 views

# Without the calculator, determine which number is larger:a) tan 250 or tan 260_________b) cos 470 or cos 480_________

To determine

a.

To find:

The larger number of tan 250 or tan 260 without using a calculator.

Explanation

Procedure used:

In a right triangle, the tangent ratio for an acute angle is the ratio opposite sideadjacent side.

Given:

The ratio tan 250 or tan 260.

Calculation:

The value of tangent ratio opposite sideadjacent side of an angle grows immeasurably large as the angle approaches to 900

To determine

b.

To find:

The larger number of cos 470 or cos 480 without using a calculator.

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