A.
rasio = U2 ÷ U1
rasio = 4÷2
rasio=2.
suku pertama=2.
Un=a×r^(n-1)
Un=2×2^(n-1)
U10=2×2^9
U10=2^10
U10=1024.
B.
Rasio =U2÷U1.
Rasio = 9÷3.
Rasio=3.
suku pertama=3.
Un=3×3^(n-1)
U10=3×3^9
U10=3^10
U10=59049.
C.
Rasio= U2÷U1.
rasio =2÷4
rasio =1/2.
Suku pertama=4.
Un=4×1/2^(n-1)
U10=4×1/2^(9)
U10=4×1/512
U10=4/512.
U10=1/128
U10=0,0078125
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A.
rasio = U2 ÷ U1
rasio = 4÷2
rasio=2.
suku pertama=2.
Un=a×r^(n-1)
Un=2×2^(n-1)
U10=2×2^9
U10=2^10
U10=1024.
B.
Rasio =U2÷U1.
Rasio = 9÷3.
Rasio=3.
suku pertama=3.
Un=a×r^(n-1)
Un=3×3^(n-1)
U10=3×3^9
U10=3^10
U10=59049.
C.
Rasio= U2÷U1.
rasio =2÷4
rasio =1/2.
Suku pertama=4.
Un=a×r^(n-1)
Un=4×1/2^(n-1)
U10=4×1/2^(9)
U10=4×1/512
U10=4/512.
U10=1/128
U10=0,0078125