" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Por ejemplo 9*0=0 ,
9*1=9
9*2=18
0,9,18 ...etc. son multiplos de 9
Ahora :
2a3a7=9°
Entonces 2+a+3+a+7 =9°
12+2a=9°
9+3+2a=9°
3+2a=9°
a=3