canyonmorlan
16.07.2021 •
Mathematics
Find the sum of the series if possible, if not possible explain why: 1+(−2/5)+(−2/5)^2+(−2/5)^3+⋯
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Ответ:
Step-by-step explanation:
5/7
Sum of a geometric series is a/(1-r) = 1/(1-(-2/5)) = 5/7
Ответ: