Jawabanmu

Jawaban paling cerdas!
2014-05-05T17:11:11+07:00
Un = a + (n-1)b = 90 + (n-1)6
U7 = 90 + (7-1)6 = 90 + 6x6 = 90 + 36 = 126
1 5 1
2014-05-05T17:12:20+07:00
N =7
a = 90
b = 6

u7 = a + (n-1) b
= 90 + 6 x 6
= 90 + 36
u7 = 126 

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