Dude man, I keep getting the wrong answer, or at least www.webassign.net tells me so. SO...the problem must lie within my algebra.
I freaking hate webassign.net. You do all this work by setting up the problem, doing the calculus, etc, but it aint worth crap because you get the final answer...
Homework Statement
Consider the solid obtained by rotating the region bounded by the given curves about y=10
Find the volume V of this solid using DISK METHOD
Homework Equations
y=5e^-x, y=5, x=4
The Attempt at a Solution
setting up the picture easy. but I'm having...
Int (e^cost)(sin2t)dt Ahhh!
Homework Statement
First make a substitution and then use integration by parts
Homework Equations
INTEGRAL OF (e^cost)(sin2t)dt
The Attempt at a Solution
the 2t is bothering me.
try subbing u=e^cost
thank you.