Section 14.3: Problem 10 Previous Problem Problem List Next Problem sin(6x3+4y4) (1 point) Suppose f(x, y) = 9x2+3 y2 (x, y) # (0, 0) Find the partial derivatives of f at the origin. 0 , (x, y) = (0, 0). fx(0, 0) = fy(0, 0) = (Enter "DNE" if the derivative does not exist.)Section 14.3: Problem 11 (1 point) Find the value of 3: at the point (1, 8, 1) if the equation 7xz+ylnx6x21=0 defines x as a function of the two independent variables y and z and the partial derivative exists. a_:: 31 (x.y.z)=(1,s,1)