Factor
\frac{3x\cos(\frac{4x+\pi }{4})-4}{3}
Evaluate
\frac{3x\cos(\frac{4x+\pi }{4})-4}{3}
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\frac{3x\cos(\frac{4x+\pi }{4})-4}{3}
Factor out \frac{1}{3}.
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