In which of the following series can be the formula S = \(\frac{a}{1 - r}\) where a is the first term and r is the common ratio, be used to find the sum of all the terms? - SchoolNGR

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In which of the following series can be the formula S = \(\frac{a}{1 - r}\) where a is ...

In which of the following series can be the formula S = \(\frac{a}{1 - r}\) where a is the first term and r is the common ratio, be used to find the sum of all the terms?

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A 4 + 8 + 16 + 32 + ...
B \(\frac{1}{2}\) + 2 \(\frac{1}{2}\) + 12\(\frac{1}{2}\) + 62 \(\frac{1}{2}\) + ..
C \(\frac{4}{81}\) + \(\frac{2}{27}\) + \(\frac{1}{9}\) + \(\frac{1}{6}\) + ...
D 128 + 64 + 32 + 16 + ...

Correct Answer: Option D

Explanation:

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