Advanced calculus

Hira Javaid

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Aug 11, 2021
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Need help please. I need the hints of how to solve this please.
A parametrized surface S is given by G(u,v)=(u-v, u+v, uv) where u²+v²1 evaluate the average value of the function f(x,y,z)=x²+y² over S
 
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To start, you need to express ff as a function of u,vu,v, then express the surface area differential on SS in terms of du,dvdu,dv.
 
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