$\"\"$

The values are $\"\"$ .

The formula for the sum of an infinite geometric series to find $\"\"$ is $\"\"$ .

Substiute $\"\"$ in the formula $\"\"$ .

$\"\"$

Divide each side by $\"\"$ .

$\"\"$

Find the value of $\"\"$ :

$\"\"$

Find the value of $\"\"$ :

$\"\"$

The first three terms of the sequence are $\"\"$ .

The value of $\"\"$ is $\"\"$ .