" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
2-3 =-1
un= a+(n-1)×b
u-1=12+(n-1)×(-1)
=12+1n×(-1)
=13n x (-1)
n=13-1
= 12n
Karena a = 12, maka rumus suku ke - n dari barisan tersebut adalah: