" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
u 20 = 2 (20) (20+1) = 40 (21) = 840
b. u 30 = 2 (30) (30+1) = 60 (31) = ....
c. u40 = 2(40) (40+1) = 80 (41)=.....
d. u 65 = 2 (65) (65+1) = 130 (66)=....