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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Originally Posted by Jenny20 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. I'm not getting a result that says it's on this sphere: Find the distance between this point and the origin: For this point to be on the sphere centered at the origin with a radius of 2a this distance would have to be 2a. -Dan
Originally Posted by topsquark For this point to be on the sphere centered at the origin with a radius of 2a this distance would have to be 2a. I think this shows that, . Those all the points in in the sphere though not necessarility on it.
Thank you very much !
Last edited by Jenny20; Jan 16th 2007 at 09:12 AM.
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