$\"\"$

The limit expression is $\"\"$ .

Let $\"\"$ .

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

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

Graph :

Graph the function $\"\"$ .

$\"\"$

Observe the graph :

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

Therefore, $\"\"$ .

$\"\"$

$\"\"$ .