Jawabanmu

2014-09-07T14:11:51+07:00
1) diket : a=2, n=100, b=2
Un=a+(n-1)b
= 2+(100-1)2
=2+99x2
=2+198
=200

3) a=4, b=4
ke 10 = U10 = 4+(10-1)4
= 4+9x4
=4+36
=40
ke 100 = U100=4+(100-1)4
= 4+99x4
=...