October 2018 2 31 Report
1. tuliskan barisan berikut merupakan barisan aritmatika atau barisan geometri
a. 5, 4 1/2 , 4, 3 1/2, 3, 3 1/2
b. 2, 1,1/2, 1/4, 1/8
c. 2,4,16,64,256
d. 1,3,5,7,9,11
2. suatu barsan bilangan di tentukan dgn rumus
A. Un = 1/2n pngkat 2- 4
tentukan :
a, barisan bilangan 3 suku pertama
b, bilangan pada suku ke 10
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