\"\"

\

The series is \"\".

\

Consider the fraction \"\".

\

\"\".

\

Solve the fraction using partial fractions.

\

\"\".

\

\"\"

\

\"\"

\

\"\"

\

Equate the constant terms.

\

\"\"

\

\"\"

\

Equate the coefficients of \"\".

\

\"\"

\

\"\"

\

Susbtitute \"\" in \"\".

\

\"\".

\

\"\".

\

\"\"

\

\"\"

\

\"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\".

\

\"\".

\

\"\"

\

\"\".