Question
Question: \(3\tan^{- 1}\left( \frac{x^{3}}{3} \right) + c\)...
3tan−1(3x3)+c
A
∫logsinxcotx6mudx=
B
log(logsinx)+c
C
log(logcosecx)+c
D
2log(logsinx)+c
Answer
log(logcosecx)+c
Explanation
Solution
Putting cotx−x+c
we get ∫1+x2etan−1xdx=∫etdt cotx+x+c