June 2019 1 382 Report
Jumlah n suku pertama suatu deret aritmetika dirumuskan sn= 4n^2-3n. Suku ke-2n deret aritmetika itu adalah

A. 16n - 7
B. 16n^2 - 2
C. 16n^2 - 2n
D. 16n^2 + 7n
E. 16n - 2n^2
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