Question

Daca x= 5√48+3√50 si y= 3√192-2√162 calculati media aritmetica a lui x si y

Answer 1

Ma(x,y)=(x+y)/2=
= (5√48+3√50 + 3√192-2√162 )/2=
=[5√(16*3)+3√(25*2) + 3√(64*3)-2√(81*2) ]/2=
=(5*4√3+3*5√2 + 3*8√3-2*9√2 )/2=
=(20√3+15√2 + 24√3-18√2 )/2=
=(44√3-3√2)/2= 22√3-3√2/2