Question

vă rog...e urgent.................​

Answer 1

1. e) $\sqrt[2]{a^{2} } = |a| (modul)$

   f)$\sqrt[2]{(ab)^{2} } = |ab|= |a|*|b|$

2. b) acolo rezultatul este -5

   d) $\sqrt[3]{\frac{512}{125} } = \sqrt[3]{\frac{8^{3} }{5^{3} } } = \frac{\sqrt[3]{8^{3} } }{\sqrt[3]{5^{3} } } = \frac{8}{5}$

   e) $\sqrt[3]{(xy)^{3} } = xy$