Question

Prove the function
f(x) = { x+1, -1 ≤ x ≤ 0, is discontinuous
{-x, 0 < x ≤ 1

Answer 1

Answer:

If f(x)=(e^(1/x)-1)/(1+e^(1/x)) when x!=0 =0, when x=0 show that f(x) is discontinuous at x=0 .