True or false and show me why you say so.

- March 18th 2013, 06:26 PMsluggerbrothEvery tangent plane to graph z^(3)=x^(3)+y^(3) passes thru origin???
True or false and show me why you say so.

- March 18th 2013, 08:54 PMTheEmptySetRe: Every tangent plane to graph z^(3)=x^(3)+y^(3) passes thru origin???