" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
tworzą one ciąg arytmetyczny.
a;a+r;a+2r
a+a+r+a+2r=36
3a+3r=36 /:3
a+r=12
r=12-a
a²+(a+r)²=(a+2r)²
a²+12²=(a+24-2a)²
a²+144=576-48a+a²
144=576-48a
48a=576-144
48a=432
a=9
r=12-9=3
boki: 9;12;15