Solution:
Let the following graph:
Limit by right:
We move along the x-axis from right to left, then we get:
lim. f(x)
x--- 1+ = 3
Limit by left:
We move along the x-axis from left to right, then we get:
lim. f(x)
x--- 1- = Infinite
thus, Since the two limits are different we can say that the limit when x approaches 1 DOES NOT EXIST.
