I got it
you were right, polar coordinates were the way to go. this was a strange problem, professor said it wouldn't be on any tests anyways.
Thank you.
The question goes like: find the SA of the portion S of the cone z^2 =x^2 +y^2 where z>=0 contained within the cylinder y^2+z^2<=49
this is my attempt using the formula for SA, I could switch to parametric eqns, but even then I'd have hard time setting up limits of integration.
I do know how to take the dot product but if its a simple matter with y=6x^2 then I must be missing something here. do you take the derivative of y and put it in dy and then solve for x and do the same thing? and then the dot product?
the question:
My attempt:
The partial derivatives did not match so i simply tried to find f(x,y) I got the set of equations on the right but that's about it.