August 2022 1 5 Report
4. Rumus suku ke-n dari barisan aritmetika yang mempunyai jumlah n suku pertama S = n²+ 3n adalah .... n a. n²+ 3n
b. 2. (n²+ 3n + 1)
c. 2n² + 1
d. 2. (n² + 1)
e. 2. (n+1)​

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