Show why (x,y,z) = (a*sin(phi)* cos(theta) , a*sin(phi)* sin(theta), sqrt(3)*a*sin(phi) ) lies on the sphere of radius 2a centered at origin.

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- Jan 15th 2007, 11:07 PMJenny20urgent help please - sphere
Show why (x,y,z) = (a*sin(phi)* cos(theta) , a*sin(phi)* sin(theta), sqrt(3)*a*sin(phi) ) lies on the sphere of radius 2a centered at origin.

- Jan 16th 2007, 04:40 AMtopsquark
- Jan 16th 2007, 05:01 AMThePerfectHacker
- Jan 16th 2007, 08:16 AMJenny20
Thank you very much !