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sophiaa23
18.01.2020 •
Mathematics
1. what is the sum of the arithmetic series
2. what is the sum of the first 10 terms of the sequence
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Ответ:
Step-by-step explanation:
You can calculate consecutive terms of the sequence and calculate the sum or use the formula of a sum of terms of an arithmetic sequence:
Q13.
Substitute:
Q14.
Substitute:
Ответ:
1/7= -22/7
Step-by-step explanation: