" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2, (2+2), (2+2+2), (2+2+2+2),...
Un = 2n
1b. 3, 5, 7, 9 ...deret dengan pertambahan 2
1+2, 1+(2+2), 1+(2+2+2), 1+(2+2+2+2),...
Un = 1+2n
10,12, 14, 16 ...deret dengan pertambahan 2
8+2, 8+(2+2), 8+(2+2+2), 8+(2+2+2+2),...
Un = 8+2n
a.
a = 2 ,b = 2
maka ,
U5 = a + (n-1)b
= 2 + (5-1)2 = 10
b.
(i) a = 3 ,b =2
rumus suku ke-n =
Un= a + (n-1)b
= 3 + (n-1) 2
= 3 + 2n -2
==》3-2+2n = 1 + 2n
(ii)
a= 10 ,b =2
Un = a + (n-1)b
= 10 + (n-1)2
= 10 + 2n -2
==》10 - 2 + 2n = 8 + 2n