Answer Happy

please solve this question
Question 2 [30 pts] Let f(x, y) = 25-4zy² ²-2y a) [10pts] Find the first partial derivatives of f. b) [10pts] Determine whether the limit lim (z,y) →(-2,2) f(x, y) exists or not. c) [10pts] Determine whether the function g(x, y) = continuous at the points (-2, 2) and (0,0). f(x,y), (x,y) = (0,0) is -1, (x, y) = (0,0)