The function is .
The function is continuous over the interval
,
and
.
Check the continuity of the function at .
Definition of continuity :
\A function is continuous at
, if
then it should satisfy three conditions :
(1) is defined.
(2) exists.
(3) .
Check the continuity of the function at .
Condition (1):
\ is defined.
If then the function is
.
.
Condition (2):
\ exists.
Left hand limit :
\Right hand limit :
\Left hand limit and right hand limit are not equal, limit does not exist.
\ does not exist.
The limit does not exist at .
Therefore the function is discontinuous at
.
and
.
.
Therefore the function is continuous at
from right side.
Check the continuity of the function at .
Condition (1):
\ is defined.
If then the function is
.
.
Condition (2):
\ exists.
Left hand limit :
\Right hand limit :
\Left hand limit and right hand limit are not equal, limit does not exist.
\ does not exist.
The limit does not exist at .
Therefore the function is discontinuous at
.
and
.
.
Therefore the function is continuous at
from left side.
Graph :
\Graph the function :
The function is discontinuous at
and it is continuous from right side.
The function is discontinuous at
and it is continuous from left side.
Graph of the function is
.