diketahui barisan geometri
16, 24, 36, 54,...
tentukan a. rasio
b. U8
16, 24, 36, 54,...
tentukan a. rasio
b. U8
[tex]barisan \: geometri \\ \\ a).r = \frac{u2}{u1} = \frac{24}{16} = \frac{3}{2} \\ \\ b).un = a {r}^{n - 1} \\ u8 = 16( { \frac{3}{2} )}^{8 - 1} \\ \\ u8 = 16 ( { \frac{3}{2}) }^{7} \\ \\ u8 = \frac{2187}{8} [/tex]
[answer.2.content]