# Thread: Line integral

1. ## Line integral

Struggling with this integral

2. Show some work so we know where you're stuck!

1) Parametrize the 2 curves which C is composed of, call them $C = \gamma_1 * \gamma_2$
2) $\displaystyle \int_C F \cdot dr = \int_{\gamma_1} F \cdot dr + \int_{\gamma_2} F \cdot dr$

3. Ok, I just had another go and got Pi+1. Sound right?

4. I got a different answer. I can't help you if you don't show what you've done.