- #1

Jamin2112

- 986

- 12

## Homework Statement

Using a partial fraction decomposition, show that if z lies in the right half plane and C is the line segment from 0 to z, then

∫

_{C}dz/(z^{2}+1) = i/2 Log(z+i) - i/2 Log(z-i) + π/2## Homework Equations

Log(z) = ln(z) + i Arg(z) (maybe relevant?)

## The Attempt at a Solution

∫

_{C}dz/(z

^{2}+1) = -1/2 ∫

_{C}dz/(z+1) + 1/2 ∫

_{C}dz/(z-1) = -1/2 Log(z+1) + 1/2 Log(z+1) ... This isn't looking promising. Suggestions?