" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b = 9-6 = 3
yang ditanya rumus suku ke-n
maka :
un = a+ (n-1)b
= 6 + (n-1)3
= 6 +3n-3
= 3n +3
Good Luck! :D
= 9 + (n-1) . 6
= 9n +6n
= 15n