Question
Question: \[\tan^{- 1}x^{2} + c\]...
tan−1x2+c
A
∫1+exe−x6mudx=
B
log(1+ex)−x−e−x+c
C
log(1+ex)+x−e−x+c
D
None of these
Answer
log(1+ex)−x−e−x+c
Explanation
Solution
Put a+b+cx2+k
Then 21ax2+31bx3+41cx4+k.
tan−1x2+c
∫1+exe−x6mudx=
log(1+ex)−x−e−x+c
log(1+ex)+x−e−x+c
None of these
log(1+ex)−x−e−x+c
Put a+b+cx2+k
Then 21ax2+31bx3+41cx4+k.