If sin x = A + B cos 2x + C cos 4x, then A = 2 B " с =

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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Question 24
If sin¹ x = A + B cos 2x + C cos 4x, then
4
X
A
=
2
B
"
C =
Transcribed Image Text:Question 24 If sin¹ x = A + B cos 2x + C cos 4x, then 4 X A = 2 B " C =
Question 23
<
>
For cos x cos 3x
sin x sin 3x = 0, use an addition or subtraction formula to simplify the equation and
then find all solutions of the equation in the interval [0, π).
The answer is x1
=
x2 =
"
x3 =
and 4
=
with ₁ < x2 < X3 < X4.
"
Transcribed Image Text:Question 23 < > For cos x cos 3x sin x sin 3x = 0, use an addition or subtraction formula to simplify the equation and then find all solutions of the equation in the interval [0, π). The answer is x1 = x2 = " x3 = and 4 = with ₁ < x2 < X3 < X4. "
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