Posted by Sean on .
Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region)
im gonna use the S for integral sign..because idk what else to use.
SS6ycos(x^33x)dxdy+SS6ycos(x^33x)
And the first integration limits for x are between 1 and y, for y the limits are between 0 and 1.
And the second part of the problem the limits for x are 1 to 0 and for y 0 to 1

Calculus  for Sean/Mary 
Steve,
I don't quite understand what is wanted. The first integral has us integrating x from a number to a function of y. The 2nd is over a fixed region. Both integrands are the same.
The real kicker is trying to integrate cos(x^33x). Forget it. Can't even do it numerically, since the upper limit is a function of y. I must be missing something here.