" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
182 1/2=n/2(2.2 1/2+(n-1)3 1/2)
=n/2(5+ 7n/2 - 7/2)
365/2 =3n/4+7n²/4
730=3n+7n²
7n²+n-730=0
(7n+73)(n-10)
n=10