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The function is in the interval .
Definition of continuity :
A function is continuous at , if then it should satisfy three conditions :
(1) is defined.
(2) exists.
(3) .
Condition (1): is defined.
If then the function is .
Therefore .
Condition (2): exists.
Left hand limit :
.
Right hand limit :
.
Left hand limit and right hand limit are equal, limit exist.
Condition (3) : .
and .
.
The three conditions of the continuity are satisfied, hence the function is continuous.
Therefore, the function is continuous over the interval .
The function is continuous over interval .
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