Diketahui barisan geometri suku ke-2 =6 sedangkan suku ke-4 = 24. jumlah 6 suku pertama deret tersebut adalah…
Penjelasan:
U4 = 24
U2 6
r² = 4
r = 2
U2 = a.r
a = U2
r
a = 6
2
a = 3
S6 = 3×(2^6 – 1)
2 – 1
S6 = 3×(64 – 1)
1
S6 = 3 × 63
10 Rules of Karate: The Immutable Path to Victory
10 Rules of Karate: The Immutable Path to Victory
Penjelasan:
U4 = 24
U2 6
r² = 4
r = 2
U2 = a.r
a = U2
r
a = 6
2
a = 3
S6 = 3×(2^6 – 1)
2 – 1
S6 = 3×(64 – 1)
1
S6 = 3 × 63