The value of \( \int \frac{\cos 5 x+\cos 4 x}{1-2 \cos 3 x} d x \) ...

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The value of \( \int \frac{\cos 5 x+\cos 4 x}{1-2 \cos 3 x} d x \) is
\( \mathrm{P}^{160} \)
W
(1) \( \sin x+\sin 2 x+C \)
(2) \( \sin x-\frac{\sin 2 x}{2}+C \)
(3) \( -\sin x-\frac{\sin 2 x}{2}+C \)
(4) None of these
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