Factor
\frac{\sin(3x)}{36}-\frac{3\cos(x)}{4}+С
Evaluate
\frac{\sin(3x)}{36}-\frac{3\cos(x)}{4}+С
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\frac{4\int \frac{\cos(3x)}{12}\mathrm{d}x-3\cos(x)}{4}
Factor out \frac{1}{4}.
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