$\"\"$

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

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

Find the value of the $\"\"$ .

In geometric series $\"\"$ .

Comapre the equation with $\"\"$ .

The common ration is $\"\"$ .

Formula for $\"\"$ term in geometric sequence is $\"\"$ .

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

$\"\"$

$\"\"$ .

Therefore, the value of $\"\"$ .

$\"\"$

The value of $\"\"$ .