(b) Verify that f(x) = 2 cos(x) sin(1x). f(x) = sin(6x) + sin(7x) = 2 sin = 2 sin 6x + N 2 X COS 6x - | cos(- ž) 2

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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(b) Verify that f(x) =
f(x)
=
= 2 sin
=
= 2 sin
sin(6x) + sin(7x)
6x +
II
2 cos(x) sin(13x).
2
2
COS
6x -
cos(-2)
2
Transcribed Image Text:(b) Verify that f(x) = f(x) = = 2 sin = = 2 sin sin(6x) + sin(7x) 6x + II 2 cos(x) sin(13x). 2 2 COS 6x - cos(-2) 2
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