To find the sum of a finite geometric series, use the formula, Sn=a1(1−rn)1−r,r≠1 , where n is the number of terms, a1 is the first term and r is the common ratio .
Step-by-step explanation:
he general formula for the nth term of a geometric sequence is: an=a1⋅rn−1 where a1=first term and r=common ratio
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To find the sum of a finite geometric series, use the formula, Sn=a1(1−rn)1−r,r≠1 , where n is the number of terms, a1 is the first term and r is the common ratio .
Step-by-step explanation:
he general formula for the nth term of a geometric sequence is: an=a1⋅rn−1 where a1=first term and r=common ratio