\"\"

\

The series is \"\".

\

Consider the fraction \"\".

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Solve the fraction using partial fractions.

\

\"\".

\

\"\"

\

\"\"

\

\"\"

\

Equate the constant terms.

\

\"\"

\

\"\".

\

Equate the coefficients of  \"\".

\

\"\"

\

\"\"

\

Substitute \"\".

\

\"\".

\

\"\"

\

\"\".

\

\"\"

\

\"\"

\

\"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\".

\

\"\".

\

Therefore, the series is converges to \"\".

\

\"\"

\

The series is converges to \"\".