What is the sum of the first five terms of a geometric series with a1 = 10 and r = 1/5?

express your answer as an improper fraction in lowest terms without using spaces.

Step-by-step explanation:

We are given that

We have to find the sum of first five terms of geometric series.

We know that nth term in geometric series is given by

Substitute the values then, we get

Hence, the sum of first five terms in geometric series =

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