Question

Se dau x=(1/2√3) la puterea -3 + 3√5=? si y=√48 - 3√5. Aflati media aritmetica a numerelor reale x si y,

Answer 1

(1/2√3)⁻³=(2√3)³=24√3:  √48=4√3 ⇒x=24√3+3√5 si y=4√3-3√5 ⇒ Ma=(x+y)/2 ⇒ Ma=(24√3+3√5+4√3-3√5)/2=28√3/2=14√3