$\"\"$

\

The sequence is $\"\"$ .

\

Calculate the first $\"\"$ terms of the sequence :

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

If $\"\"$ then $\"\"$ .

\

$\"\"$

\

Graph :

\

\

(1) Draw the coordinate plane.

\

\

(2) Graph the sequence $\"\"$ indicate the first $\"\"$ terms of the sequence.

\

$\"\"$

\

Observe the graph:

\

As $\"\"$ tends to $\"\"$ , $\"\"$ approaches to $\"\"$ .

\

The sequence convergences to $\"\"$ .

\

$\"\"$

\

The sequence is $\"\"$ .

\

Find the limit of the sequence.

\

$\"\"$

\

As $\"\"$ , $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

The sequence convergences to $\"\"$ .