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Question

Question: \(3\tan^{- 1}\left( \frac{x^{3}}{3} \right) + c\)...

3tan1(x33)+c3\tan^{- 1}\left( \frac{x^{3}}{3} \right) + c

A

cotxlogsinx6mudx=\int_{}^{}\frac{\cot x}{{logsin}x}\mspace{6mu} dx =

B

log(logsinx)+c\log({logsin}x) + c

C

log(logcosecx)+c\log(\log c\text{osec}x) + c

D

2log(logsinx)+c2\log({logsin}x) + c

Answer

log(logcosecx)+c\log(\log c\text{osec}x) + c

Explanation

Solution

Putting cotxx+c\cot x - x + c

we get etan1x1+x2dx=etdt\int \frac { e ^ { \tan ^ { - 1 } x } } { 1 + x ^ { 2 } } d x = \int e ^ { t } d t cotx+x+c\cot x + x + c