" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
13 12
d = - ( ------ ) ( ------) 13 x 4 42 21
18 9 - ---------- = - ------- = - -------- 3 27 54 27
21
repuesta es - --------
27