Question: Suppose f is a differentiable function of one variable. Show that all tangent planes to the surface z = x f(y/x) intersect in a common

Suppose f is a differentiable function of one variable. Show that all tangent planes to the surface z = x f(y/x) intersect in a common point.

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Let gx y x 2 Then gx y x 2 2 and 9v x y x Thus the tangent plane a... View full answer

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