$\"\"$

The limit expression is $\"\"$ .

Let $\"\"$ .

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \
\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \	\ $\"\"$ \

Graph:

Graph the function $\"\"$ .

$\"\"$

Observe the graph, value of the function at $\"\"$ is $\"\"$ .

Therefore, $\"\"$

$\"\"$

$\"\"$ .