Pls help w/ the following questions:

Q1:

Let f (x, y) = e'7x'8Y). Find the equation for the tangent plane to the graph of f at the point (1, 2). (Use symbolic notation and fractions where needed.) 2 Find the equation of the tangent plane to the graph of G(u, w) = sin (uw) at the point (n, ). (Use symbolic notation and fractions where needed. Enter your answer using u-, w-, z-coordinates.) the equation:Find the points on the graph of z = xy3 + 8y'l where the tangent plane is parallel to 3x + 5y + 32 = 0. (Give your answer as a comma-separated list of points in the form (*, *, *). Express numbers in exact form. Use symbolic notation and fractions where needed.) point(s): l 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) = \