Jawabanmu

2014-04-15T17:08:08+07:00
A=16 | ar^4=81 | r^4=5.0625 | r=1.5 | S5=(16-16×1.5^5)/(1-1.5)=(16-121.5)/(-0.5)=(-105.5)/(-0.5)=211 cek ulang yaa semoga membantu ^^