함수 f (x) = {xsin 1 / x + b x > o a x = 0 5 + x ^ 2 x

함수 f (x) = {xsin 1 / x + b x > o a x = 0 5 + x ^ 2 x

함수.
f (x) = xsin (1 / x) + b, x > 0,
= a, x = 0,
= 5 + x ^ 2, x