$\"\"$

The limit expression is $\"\"$ .

Let $\"\"$ .

\ \

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

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

Graph:

Graph the function $\"\"$ .

$\"\"$

Observe the graph:

As $\"\"$ value increases then function decreases and tends to zero.

Therefore, $\"\"$ .

$\"\"$

$\"\"$ .