pada barisan geometri diket U2 = 6 U5 = 48 hitunglah suku ke 10 *Terima kasih
Matematika
Meiraarr
Pertanyaan
pada barisan geometri diket U2 = 6 U5 = 48 hitunglah suku ke 10
*Terima kasih
*Terima kasih
2 Jawaban
-
1. Jawaban ninafadiahayya
U2=6
U5=48
U5/U2 = r^4/r
48/6 = r^3
8 = r^3
3 √8 = r
2 = r
U2 = ar
= a. 2=6
a=6/2
a = 3
Jadi,
U10 + ar^9
3.(2)^9
3.512
= 1536 -
2. Jawaban nurrafi77
U2 = a r
6 = a r
a = 6/r
U5 = a r⁴
48 = (6/r) r⁴
48 = 6 r³
r³ = 48/6
= 8
r = 2
a = 6/r
= 6/2
= 3
U10 = a r⁹
= 3 (2)⁹
= 1.536