49-52 ■ Partial Sums of a Geometric Sequence Find the partial sum of the geometric sequence that satisfies the given conditions.
The partial sum of the geometric sequence.
The partial sum of a geometric sequence is given as,
Here, is the partial sum of term of the geometric sequence, is the number of terms, is the first term of the sequence and is the common ratio of the sequence.
The condition for geometric sequence is given as,
Calculate the partial sum of geometric sequence.
Substitute for , for and for in equation to calculate the partial sum of the sequence.
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