Question

Solve the equation. (Enter your answers as a comma-separated list. Use n as an integer constant. Enter your response in radians.) cos3 x − cos x = 0

Name: solve the equation enter your answers as a comma separated list use n as an integer constant enter your response in radians cos3 x cos x 0 88395
Uploaded: 2022-07-15T01:42:52-08:00
Duration: 2 min 33 s
Channel: Steven Clarke
Description: solve the equation enter your answers as a comma separated list use n as an integer constant enter your response in radians cos3 x cos x 0 88395

          Solve the equation. (Enter your answers as a comma-separated list. Use n as an integer constant. Enter your response in radians.)
cos3 x − cos x = 0

Added by Luis Miguel H.

Calculus: Early Transcendentals

James Stewart 8th Edition

Instant Answer

Solved by Expert Steven Clarke

07/15/2022

Step 1

First, we can use the triple angle formula for cosine, which is: $$ \cos{3x} = 4\cos^3{x} - 3\cos{x} $$ Now, we can substitute this into the given equation: $$ 4\cos^3{x} - 3\cos{x} - \cos{x} = 0 $$ Simplify the equation: $$ 4\cos^3{x} - 4\cos{x} = Show more…

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