se the function to show that fx(0, 0) and fy(0, 0) both exist, but that f is not differentiable at ( 7x²y x4 + y2 0, (x, y) # (0, 0) f(x, y) = (x, y) = (0, 0) %3D fx(0, 0) = fy(0, 0) = lim along the line y = x (x, y) (0, 0) long the curve y = x2 lim (x, y) - (0, 0) O fis continuous at (0, 0) O fis not continuous at (0, 0)

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