For b e r, define xy x#0 x)= *+y2x*0 0, x =0 then, at (0, 0) the function f is- continuous for b > 0 (d) continuous for ß <0 (a) continuous for b = 0 b) (c) not

For B e R, define xy x#0 X)= *+y2X*0 0, x =0 Then, at (0, 0) the function f is- continuous for B > 0 (D) continuous for ß <0 (A) continuous for B = 0 B) (C) not differentiable for any $