/*! 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. 15 express each product as a sum co... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 7: Q. 15 (page 500)

express each product as a sum containing only sines or only cosines

sin3蠎2cos蠎2

Short Answer

Expert verified

sin3蠎2cos蠎2=12[sin(2蠎)+sin(蠎)]

Step by step solution

01

Step 1. Given expression 

sin3蠎2cos蠎2

02

Step 2. expressing them in terms of single sine or cosine

Using identity :

sinx+siny=2sinx+y2cosx-y2

We get :

role="math" localid="1646448141774" sin3蠎2cos蠎2=12[sin(3蠎2+蠎2)+sin(3蠎2-蠎2)sin3蠎2cos蠎2=12[sin(2蠎)+sin(蠎)]

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

Establish each identity.

1-2cos2胃sin胃cos胃=tan胃-cot胃

find the exact value of the expression

sin 75掳 + sin 15掳

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

tancos-1-32

Multiply and simplify:(sin(胃)+cos(胃))(sin(胃)+cos(胃))-1sin(胃)cos(胃)

Express the product sin(3胃)sin(5胃)as a sum containing only sines or only cosines.
See all solutions

Recommended explanations on Math Textbooks

Discrete Mathematics

Read Explanation

Applied Mathematics

Read Explanation

Calculus

Read Explanation

Decision Maths

Read Explanation

Pure Maths

Read Explanation

Logic and Functions

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.