IIT JAM Follow
January 22, 2021 9:12 am 30 pts
14 Let f: R R be defined by x+y2, if x and y are irrationals 0, otherwisse Then (A) fis not continuous at (0, 0) (B) f is continuous at (0, 0) but not differentiable at (0, 0) (C) fis differentiable only at (0, 0) (D) fis differentiable everywhere 15