Jawabanmu

2014-06-08T11:23:21+07:00
U17 = 98 +(17-1)-6
=98+(16)-6
=98-96
U17 = 2
2014-06-08T11:27:38+07:00
U17= a + ( n-1 ) b
     = 98+ (17-1)(-6)
     = 98 + (16)(-6)
     = 98 -96
     -= 2