The function is .
Graph :
Graph of the function :
(a)
Find .
Observe the above graph.
As tends to
from left side,
approaches to
.
So .
(b)
Find .
Observe the above graph.
As tends to
from right side,
approaches to
.
So .
(c)
Find .
Left hand limit .
Right hand limit .
Left hand limit and right hand limit are not equal, does not exist.
does not exist.
(a) .
(b) .
(c) does not exist.