MCQ
$\int {\frac{{dx}}{{{{\sin }^6}x + {{\cos }^6}x}} = } $
- ✓$\tan^{-1} (\tan x -\cot x) + C$
- B$\tan^{-1}(\tan x + \cot x) + C$
- C$\tan^{-1}(\tan x/2) + C$
- DNone
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