My Math Forum Some Multivariable Questions
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 November 4th, 2007, 11:09 AM #1 Newbie   Joined: Nov 2007 Posts: 2 Thanks: 0 Some Multivariable Questions Need some help on these problems >_< 1) Find the range of the parameter "d" for which the intersection of the sphere x^2 + y^2 + z ^2 = 1 and the plane x + y + z = d is non-empty 2)Parameterize the intersection as described in Problem #1 And 3) Let f be a differentiable function and let g(x,y,z) = f(yz,xz,xy). Express the following quantities with appropriate partial derivatives of f. (These are partial derivatives ) gx(x,y,z) gy(y,x,z) gz(x,y,z)
 November 13th, 2007, 03:54 PM #2 Newbie   Joined: Nov 2007 Posts: 2 Thanks: 0 Guess no one here can do Multivariable Calculus. Oh well, figured them out myself.

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