A function fff is defined as f(x)=limn→∞xn−1xn+1f(x) = \lim_{n \to \infty} \frac{x^n - 1}{x^n + 1}f(x)=limn→∞xn+1xn−1 for x≥0x \ge 0x≥0. Where is f(x)f(x)f(x) discontinuous?
Nowhere
x = 0
x = 1
x = e