Tentukan rasio dari setiap barisan geometri berikut a. 27,-9,3 -1 b.8,4,2,1 c.6,-3,3/2,3/1 d.1,-1,1,-1

a. a = 27
r = U2/U1 = -9/27 = -1/3

b. a = 8
r = U2/U1 = 4/8 = 1/2

c. a = 6
r = U2/U1 = -3/6 = -1/2

d. a = 1
r = U2/U1 = -1/1 = -1

maaf ya kalo ada ya salah. semoga membantu^^

a) a=27
r=U2/U1
=-9/27
= -1/3
b) a= 8
r=U2/U1
=4/8
=1/2
c) a= 6
r=U2/U1
=-3/6
=-1/2
d) a= 1
r=U2/U1
=1/-1
=-1