" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
( 38 - 18 ) : ( 7 - 3 ) = 20 : 4 = 5
Cari awal :
18 = a + 2b
18 = a + 10
a = 8
Maka, jumlah 24 suku pertama :
S₂₄ = 24 : 2 ( 2 × 8 + ( 24 - 1 ) 5 )
= 12 ( 16 + 23 × 5 )
= 12 × 131
= 1.572