3 years ago

What is the sum of an infinite geometric series if the first term is 81 and the common ratio is 2⁄3?

Mathematics

1 answer:

Marrrta [24]3 years ago

4 0

the sum to infinity of a geometric series = $\frac{a}{1-r}$

where a is the first term and r the common ratio

= $\frac{81}{\frac{1}{3} }$ = 81 × 3 = 243

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