$\"\"$ \ \

The geometric sequence is $\"\"$ . \ \

The first term of the sequence is $\"\"$ . \ \

The second term of the sequence $\"\"$ . \ \

Find the common ratio. \ \

Common ratio: $\"\"$ . \ \

$\"\"$ \ \

Common ratio is $\"\"$ . \ \

Sum of the first $\"\"$ terms of the geometric series $\"\"$ . \ \

Where $\"\"$ is the first term and $\"\"$ is the common ratio. \ \

Substitute $\"\"$ and $\"\"$ in $\"\"$ . \ \

$\"\"$ \ \

$\"\"$

The sum of the first $\"\"$ terms of the series is $\"\"$ .