" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a = 7
b = 14 - 7 = 7
42 - 35 = 7
Un = 7 + (n-1)7
Un = 7 + 7n -7
Un = 7n