Bună!
a)
[tex](2 \sqrt{3} ) ^{2} = 4 \times 3 = 12[/tex]
b)
[tex]( - 3 \sqrt{2} ) ^{2} = 9 \times 2 = 18[/tex]
c)
[tex]( \frac{1}{2} \times \sqrt{2} ) ^{2} = ( \frac{ \sqrt{2} }{2} ) ^{2} = \frac{2}{4} = \frac{1}{2} [/tex]
d)
(-2 rad. 5)³=-8×5 rad. 3=-40 rad. 5
Mult succes!
