F(x,y,z)=(2z)i+(3x)j+(5y)k is a part of a paraboloid where z>=0
on the x-y plane our paraboloid is 4=x^2+y^2
and the parametric view of it is:
x=2cost y=2sint z=0
so we get
i cant understand the next step
why??
Last edited by transgalactic; May 11th 2011 at 02:22 PM.