\( \int \frac{\sin ^{3} x}{\left(\cos ^{4} x+3 \cos ^{2} x+1\right)...
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\( \int \frac{\sin ^{3} x}{\left(\cos ^{4} x+3 \cos ^{2} x+1\right) \tan ^{-1}(\sec x+\cos x)} d x \) is equal to
\( \mathrm{P}^{16} \)
WV
(1) \( \tan ^{-1}(\sec x+\cos x)+\mathrm{C} \)
(2) \( \log _{e}\left|\tan ^{-1}(\sec x+\cos x)\right|+\mathrm{C} \)
(3) \( \frac{1}{(\sec x+\cos x)^{2}}+C \)
(4) None of these
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