" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
U4 /U2 = 9
a.r^3 / a.r = 9
r² = 9
r = √9
r = 3
maka :
a.r = 9
a.3 = 9
a = 9/3
a = 3
jadi, rumus suku ke-n dr barisan geometri :
Un = a.r^(n-1)
Un = 3.3^(n-1)
Un = 9^(n-1)
ket :
^ = bentuk pangkat
U4 /U2 = 9
a.r^3 / a.r = 9
r² = 9
r = √9
r = 3
a.r = 9
a.3 = 9
a = 9/3
a = 3
jadi, rumus suku ke-n dr barisan geometri :
Un = a.r^(n-1)
Un = 3.3^(n-1)
Un = 9^(n-1)
semoga membantu tugas