Hello everybody... I have a problem, can help me with this??
A torus of radius 3 (and cross-sectional radius 1) can be represented parametrically by the function
where D is the rectangle given by .
Follow Math Help Forum on Facebook and Google+
You have to integrate the length of the normal vector to the surface over the region given in the plane.
First find the tangent vectors and
In this problem, for example,
Then find the cross product of and
Now you have a vector normal to the surface of the torus. Find the magnitude of this vector.
then surface area of the torus =
ThanKsssss You Saved My Life... !!!!!!
View Tag Cloud