Question

ex 2 ajutatima,va rog..

Answer 1

Deoarece √3<2  |√3-2|=2-√3
a=|√3-2|+√3=2-√3+√3
a=2
b=1/(2+√3)+1/(2-√3)=(2-√3+2+√3)/[(2-√3)x(2+√3)]
b=4/(4-3)=4
media aritmetica=(a+b)/2=(2+4)/2=6/2=3