a) is correct.
b) is correct.
c) should actually be .
G'day! I'm supposed to set up integrals and evaluate the length of the curve for three problems. I just wanted to make sure I've got the set up done right, since evaluating should be relatively easy.
So, the formula I'm using is:
a) for the curve , in the interval
I got:
b) for the curve: , in
I got:
c) for the curve: , in
I got:
Thank you very much, mates! Lemme know if you need the step in between!