" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
U3 = 17 --> a+2b = 17
U5 = 35 --> a+4b = 35 _
-2b = -18
b = 9
a+2b =17
a+2.9 = 17
a+18 = 17
a = 17-18
a = -1
suku ke-20
U20 = a+19b
= -1 + 19.9
= -1 + 171
= 170
semoga membantu ya :)