Question

aflati numerele naturale a b si c stiind ca a•b=45,a•c=72 si b•c=360

Answer 1

Răspuns:

ab=45     b=45/a

ac=72      c=72/a

b*c=360

45/a*72/a=360

3240/a^2=360

a^2=3240/360

a=rad.9

a=3

b=45/a=45/3=15

c=72/3=24