\"\"

\

The function is \"\" and \"\".

\

Find \"\".

\

\"\".

\

Differentiate on each side with respect to \"\".

\

\"\"

\

Product rule of derivatives : \"\".

\

\"\"

\

\"\".

\

\"\"

\

Find \"\" at \"\".

\

\"\".

\

Substitute \"\" in the \"\".

\

\"\"

\

\"\".

\

\"\"

\

The derivative of the function is \"\".

\

The derivative of the function at \"\" is  \"\".