Prove the identity. 4 sin(4x)= 16 cos(x) cos(2x) sin(x) Use the Double-Angle Formula for Sine as needed and then simplify. 4 sin(4x) sin(x) = || 8(2( sin(x) sin(x) ))(cos(2x))

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 25E
icon
Related questions
Question
how do i solve
Prove the identity.
4 sin(4x) = 16 cos(x) cos(2x)
sin(x)
Use the Double-Angle Formula for Sine as needed and then simplify.
4 sin(4x)
sin(x)
=
=
=
8(2(
sin(x)
sin(x)
(2x))
Transcribed Image Text:Prove the identity. 4 sin(4x) = 16 cos(x) cos(2x) sin(x) Use the Double-Angle Formula for Sine as needed and then simplify. 4 sin(4x) sin(x) = = = 8(2( sin(x) sin(x) (2x))
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 4 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage