" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Barisan Aritmetikau2 - u7 = 30
a+b - a - 6b = 30
-5b = 30
b = - 6
u2 = 6
u12 = u2 + 10b = 6 + 10(-6)
u12 = 6- 60 = -54