October 2019 1 25 Report
1. Tentukanlah mana yang merupakan deret geometri dari deret-deret berikut :
a. 3 + 6 + 12 + 24 + 48 + ....
b. 2 + 4 + 8 + 14 + 22 + ....
c. 80 + 40 + 20 + 10 + 5 + ....

2. Tentukanlah jumlah 7 suku pertama dan deret geometri berikut :
a. a = 5 dan r = 3
b. a = 140 dan r = 1/2​
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