Question

Hitunglah S17 dari pola bilangan berikut 9,14,19,...!(beserta caranya) :)

Answer 1

Verified answer

Aritmatika

pola bilangan → 9 , 14 , 19 ,..

a = 9
b = 14 - 9 = 5

S17 = 17/2 (2a + 16b)
S17 = 17/2 (2.9 + 16.5)
S17 = 17/2 (18 + 80)
S17 = 17/2 (98)
S17 = 17 × 49
S17 = 833

Semoga berguna +_+

Answer 2

Verified answer

Bab Barisan dan Deret
Kelas 9 SMA

Barisan Aritmatika
-> karena mempunyai beda, bukan rasio

a = 9
b = U2 - U1
   = 14 - 9
   = 5

U17 = 9 + (17 - 1)5
       = 9 + 80
       = 89

S17 = 17/2 (9 + 89)
       = 17/2 x 98
       = 833


Semoga Membantu!!!