Jawabanmu

Jawaban paling cerdas!
2014-04-24T05:07:41+07:00
*Un= (n+1)(n-1) * = n^2-1 *^=pangkat *U10 = 10^2 -1 = 99 *U13 = 13^2 - 1 = 168 *99+168 = 267