Hello! Please answer the problems correctly and with COMPLETE solution in a clean sheet of paper.

I promise that I will do UPVOTE once the questions are all answered correctly. Thank you so much!

In the topics of Gradient and Directional Derivatives , as Well as Tangent planes and normal lines, please answer the problem correctly in a clean sheet OF paper with COMPLETE. SOLUTION. Thank You! 1- ) The electrical potential V at any point ( x,y ) is given by V-In Jx2ty ? . What is The magnitude of The greatest rate OF change OF V at the point ( 3/4 ) ? 2. ) Find the directional denvahive of- z = ye" at the point ? ( 013 ) in the direchon OF 9 = 8.) Find The equations OF the tangent plane and the normal line to The surface defined by z= 3 x2 + 242 - 11 at The point ( 2, 1, 3 )