Find the sum of first 5 terms of the series 11, 121, 1331,...Choices:- 177155 12321 24123 23232
Question
Solution 1
The given series is a geometric series where each term is the cube of the corresponding term in the series 1, 2, 3, 4, 5, ...
The sum of the first n terms of a geometric series can be calculated using the formula:
S_n = a * (r^n - 1) / (r - 1)
where:
- S_n is the sum of the first n terms,
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