Here's the question you clicked on:
Dido525
Find the derivative:
\[\frac{ d }{ dx }\int\limits_{x^2}^{x^3}e ^{t^2+t} dt\]
So I tried to use the fundamental theorem of calculus:
Hmmmm no, it looks correct :O Didn't we just go over this problem like last week? XD Maybe that was someone else. heh
Yeah we did. However apparently the professor said it's wrong...
Mmmmmmmm nope you did it correctly, even wolfram agrees. http://www.wolframalpha.com/input/?i=%28d%2Fdx%29+integral_%7Bx%5E2%7D%5E%7Bx%5E3%7De%5E%7Bt%5E2%2Bt%7D+dt Maybe the teacher wrote it down wrong or something...
Oh, there shouldn't be a +C, maybe that's what he's fussing about? :o
There should be. It's an indefinite intergal.
Why would you say it's indefinite? :o even though the limits are variables, they are certainly definite. :D So ANY constant that shows up, will end up being subtracted when you take away the value evaluated at the lower limit.