Pls help with the following questions:

Q1:

Find the equation of the tangent plane to the graph of f(x, y) = 1n (5x2 2y2) at the point (1, 1). (Use symbolic notation and fractions Where needed. Enter your answer using x-, y-, zcoordinates.) the equation: Find the equation of the tangent plane to f (x, y) = 5x2 ley + 10y2 having slope 10 in the positive x direction and slope 20 in the positive y direction. (Use symbolic notation and fractions where needed.) Let f(x, y, z) = 14x2 y2 + 522. Calculate Vf (0,7, 8). (Write your solution using the form (*,*,*). Use symbolic notation and fractions where needed.) Vf(0,7,8) = ' Let P be the tangent plane to the graph of g(x, y) = 16 8x2 16322 at the point (4, 2, 176). Let f(x, y) = 16 x2 yz. Find the point on the graph of f where the tangent plane is parallel to P. (Use symbolic notation and fractions where needed. Give your answer in the form (*,*,*)). point