Let L be the line y=10, x=9z. If we rotate L around the x-axis, we get a surface whose equation is $\displaystyle Ax^2+By^2+Cz^2 = 1$, where

A = , B = , C =

I'm was able to find B and C. Need help with A.

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- Feb 4th 2009, 12:16 PMvietQuadric Surface Problem
Let L be the line y=10, x=9z. If we rotate L around the x-axis, we get a surface whose equation is $\displaystyle Ax^2+By^2+Cz^2 = 1$, where

A = , B = , C =

I'm was able to find B and C. Need help with A. - Feb 5th 2009, 08:51 AMOpalg
- Feb 5th 2009, 01:16 PMviet
so to solve A, i set y & z to 0, and solve for A right?