Xy tg,y)=x?+y2*+y #0 0 ,x=y=0 then, (a) f(x, y) is continuous at origin (b) f(x, y) is discontinuous at origin (c) f(x, y) has removable discontinuity at origin

Xy TG,y)=x?+y2*+y #0 0 ,X=y=0 Then, (a) f(x, y) is continuous at origin (b) f(x, y) is discontinuous at origin (c) f(x, y) has removable discontinuity at origin (d) fx, y) is not differentiable at origin