1. e) [tex]\sqrt[2]{a^{2} } = |a| (modul)[/tex]
f)[tex]\sqrt[2]{(ab)^{2} } = |ab|= |a|*|b|[/tex]
2. b) acolo rezultatul este -5
d) [tex]\sqrt[3]{\frac{512}{125} } = \sqrt[3]{\frac{8^{3} }{5^{3} } } = \frac{\sqrt[3]{8^{3} } }{\sqrt[3]{5^{3} } } = \frac{8}{5}[/tex]
e) [tex]\sqrt[3]{(xy)^{3} } = xy[/tex]
