Răspuns :
ma=(a+b):2=
=[(1/3+12/5)+(2/3+3/5)]/2=
= [(5+36)/15+(10+9)15]/2=
=(60/15)/2=
=4/2=
=2
Deci media aritmetica a celor doua numere este 2.
=[(1/3+12/5)+(2/3+3/5)]/2=
= [(5+36)/15+(10+9)15]/2=
=(60/15)/2=
=4/2=
=2
Deci media aritmetica a celor doua numere este 2.
Pentru inceput sa aducem la o forma mai simpla numerele a si b:
a=1/3+12/5 b=2/3+3/5
a=5/15+26/15 b=10/15+9/5
a=41/15 b=19/15
Acum facem media:
Ma=(a+b)/2
Ma=(41/15+19/15)/2
Ma=(60/15)/2
Ma=4/2
Ma=2
Sper ca am fost de folos
a=1/3+12/5 b=2/3+3/5
a=5/15+26/15 b=10/15+9/5
a=41/15 b=19/15
Acum facem media:
Ma=(a+b)/2
Ma=(41/15+19/15)/2
Ma=(60/15)/2
Ma=4/2
Ma=2
Sper ca am fost de folos