Question

toata evaluarea si ambele variante va rog

Answer 1

VARIANTA 1
1. $\sqrt{8}$
2. $\sqrt{3}$ ≈ 1,73

2-1,73 = 0,27
1,73-2= - 0,27

ordonate: $\sqrt{3} -2, 0, 2-\sqrt{3}$
3. [tex]8 \sqrt{48} - 8 \sqrt{80} + 5 \sqrt{405} -7 \sqrt{147} = [/tex]$=8*4 \sqrt{3}-8*4 \sqrt{5}+5*9 \sqrt{5} -7*7 \sqrt{3}=$
=$32\sqrt{3}-32 \sqrt{5} +45 \sqrt{5}-49 \sqrt{5}= -17 \sqrt{3} +13 \sqrt{5}$


VARIANTA 2

1.$- \sqrt{18}$
2.$\sqrt{5} - 4, 0, 4- \sqrt{5}$
3. ANALOG VAR 1