Saved Bookmarks
| 1. |
Evaluate the following definite integrals int_-1^1 dx/(x^2+2x+5) |
|
Answer» SOLUTION :`int_-1^1 DX/(x^2+2x+5) = int_-1^1 dx/((x+1)^2 +4)` =`[1/2 tan^-1((x+1)/2)]_-1^1` =`1/2[tan^-1 1- tan^-1 0]` =`1/2[tan^-1 1- tan^-1 -]` |
|