JvGaming2001
23.12.2019 •
Mathematics
If the nth partial sum of a sequence an is given by sum_{k=1}^{n} 2k+4 then what is the 4th term of the sequence? a. 12 b. 14 c. 6 + 8 + 10 + 12 d. 4
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Ответ:
2(2)+4=8
2(3)+4=10
2(4)+4=12
fourth term would be 12 or A
Ответ: