Question: Given the function, f ( x , y ) - l n 3 x + 4 x 2 e y - 5 c o s

Given the function, f(x,y)-ln3x+4x2ey-5cos2y, find the following. (20 points)
a. Find the first partial derivatives fx and fy,
b. Find the second partial derivatives f,fyy,fxy, and fyx.
c. Find the slope in the x-direction and in the y-direction at the point (1,).
Given the function, f ( x , y ) - l n 3 x + 4 x 2

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