Jawabanmu

2013-12-12T20:40:19+07:00
Un = a+(n-1)b
u50 = 3+(50-1) beda nya 4
U50 = 3+ (49)4
u50 = 3 + 196
U50 = 199
4 4 4
2013-12-12T20:50:41+07:00
U50 = 3 + (49) 4
u50 = 3 + 196
u 50 = 199
1 3 1