InterviewSolution
Saved Bookmarks
| 1. |
`int(x^(3))/(1+x^(8))` का मान ज्ञात कीजिए । |
|
Answer» माना `I=int(x^(3))/(1+x^(8))dx` माना `" "x^(4)=t` `rArr" "4x^(3)dx=dt` `rArr" "x^(3)dx=(dt)/(4)` `therefore" "I=int(dt)/(4(1+t^(2)))=(1)/(4)tan^(-1)t+c` `" "=(1)/(4)tan^(-1)x^(4)+c` |
|