Question

Evaluate

Answer 1

Answer:

  f(0) = 1/2

Step-by-step explanation:

At x=0, the inequality tells you ...

  1/2 ≤ 1 -f(0) ≤ 1/2

That is, ...

  1 - f(0) = 1/2

  f(0) = 1/2

  $\boxed{\lim\limits_{x\to 0}{f(x)}=\dfrac{1}{2}}$