Find the equation for ​(a) the tangent plane and ​(b) the normal line at the point P0(1/2,1,e) on the surface 2x ln y+y ln z=2x.(equation pic attatched)   Answers: a) Using a coefficient of 2 for​ y, the equation for the tangent plane is answer here b) Find the equations for the normal line. Let x=1/2−2t.

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