Question

Va rog am nevoie foarte mult, daca puteti scrie rezolvarea m as bucura enorm !​

Answer 1

media aritmetica a doua numere a si b este: (a+b)/2

a=14+2√18

a=14+2√(3²•2)

a=14+2•3√2

a=14+6√2

b=2(7-3√2)

b=14-6√2

ma=(14+6√2+14-6√2)/2

ma=(14+14)/2

ma=14

=> Erika a calculat corect