sindy35111
10.11.2019 •
Mathematics
What is the sum of the first five terms of a geometric series with a1 = 20 and r = 1/4?
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Ответ:
Sn = 20(1 - (1/4)^5)/(1 - 1/4) = 20(1 - 1/1024)/(3/4) = 20(1023/1024)/(3/4) = 26 41/64
Ответ:
2, 5
1,9
3,4,3
basically any numbers that add up to 10
Step-by-step explanation: