Solution
= Solution
The <geometric series> converges because the <absolute value> of its common ratio is below one. Its <sum> is
$$
\boxed{\frac4{1-1/3}=6.}
$$
= Solution
The <geometric series> converges because the <absolute value> of its common ratio is below one. Its <sum> is
$$
\boxed{\frac4{1-1/3}=6.}
$$