Question

va rog ajutati-ma am uitat cum se face media aritmetica si media geometrica​

Answer 1

Răspuns:

ma : a*b /2. Mg: radical a*b

Answer 2

mₐ(x,y)=(x+y)/2

mg(x,y)=√xy

x=√(2√3-3)²-√(1-√3)²+√(√3-2)²+√(-8)²⇔x=|2√3-3|-|1-√3|+|√3-2|+√64 ⇔ x=2√3-3-[-(1-√3)]+[-(√3-2)]+8 ⇔

x=2√3-3+1-√3-√3+2+8 ⇔ x=8 S={8}

y=√(5-2√6)+√(1+√2)²+√(12-6√3) ⇔ y=√[(√2)²-2·√2·√3+(√3)²]+1+√2+√[3²-2·3·√3+(√3)²] ⇔ y=√(√2-√3)²+1+√2+√(3-√3)² ⇔

y=|√2-√3|+1+√2+|3-√3| ⇔ y=[-(√2-√3)]+1+√2+3-√3 ⇔ y=-√2+√3+1+√2+3-√3 ⇔ y=1+3 ⇔ y=4 S={4}

mₐ(x,y)= mₐ(8,4)= (8+4)/2= 12/2= 6

mg(x,y)=mg(8,4)= √(8·4)= √32= 4√2