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OpenStudy (anonymous):
Find all solutions of the equation in the interval [0,2pi). (cos^3)x =cosx
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OpenStudy (anonymous):
Well, if you let \(y=\cos(x)\) then you have a cubic equation.
OpenStudy (mertsj):
1. Subtract cos x from both sides 2. Factor out cos x 3. Factor cos^2x-1 4. Set each factor equal to 0 5. Solve each equation.
OpenStudy (anonymous):
Can you solve \[ y^3=y \]
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