/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 16 In Problems 13鈥�24, find the ex... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 7: Q. 16 (page 450)

In Problems 13鈥�24, find the exact value of each expression.

cos-1 (- 1)

Short Answer

Expert verified

The exact value of cos-1 (- 1) is蟺.

Step by step solution

01

Step 1. Given Information: 

Given expression: cos-1 (- 1)

We want to find the exact value of given expression.

02

Step 2. Solution: 

The given expression can be rewritten as:

cos-1(-1)=x;0鈮�x鈮�蟺

Hence we get cos (x) = - 1

Since we have cos-1 function initially, the bounds on the cos function are going to be in the interval [0,蟺] which represents the range of cos-1 function.

Using the unit circle, we know that in order to get (- 1), x must be equal to 蟺.

Hence, we get cos-1(-1)=蟺

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In Problems 9鈥�36, find the exact value of each expression.

sectan-13

In Problems 9鈥�36, find the exact value of each expression.

cossin-1-32

Find the value of the number C:

12cos2x+C=14cos2x

True or False:

tan2胃+tan2胃=tan4胃

In Problems 9鈥�36, find the exact value of each expression.

sincos-112
See all solutions

Recommended explanations on Math Textbooks

Probability and Statistics

Read Explanation

Decision Maths

Read Explanation

Calculus

Read Explanation

Mechanics Maths

Read Explanation

Applied Mathematics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.