$\"\"$

\

The function is $\"\"$ , $\"\"$ and $\"\"$ .

\

$\"\"$ Taylor polynomial: $\"\"$ .

\

$\"\"$ and $\"\"$ .

\

$\"\"$ and $\"\"$ .

\

$\"\"$ and $\"\"$ .

\

$\"\"$ and $\"\"$ .

\

Substitute the corresponding values in Taylor series.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .