Which equation represents the partial sum of the geometric series?
a. 125+25+5+1
b. 25+5+1+1/5
c. 1+1/5+1/25+1/125
d. 1/125+1/5+5+125

The partial sum of the geometrical series is 125+25+5+1. Thus, option (A) is correct.

The sum of geometric series given in the question can be represented as:

Now, put the values of n from 1 to 4 to find the terms geometric series.

Therefore,

Hence, the partial sum of the geometrical series is 125+25+5+1. Thus, option (A) is correct.

To know more about the Geometric Series, please refer to the link:

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