Question

Rationalizati numitorii
12 supra radical din 3
9 supra3 radical din 3
16 supra 2 radical din 2
Va rog e urgent

Answer 1

$\frac{12}{ \sqrt{3} } = \frac{12 \sqrt{3} }{ { (\sqrt{3}) }^{2} } = \frac{12 \sqrt{3} }{3} = 4 \sqrt{3}$

$\frac{9}{3 \sqrt{3} } = \frac{3}{ \sqrt{3} } = \frac{3 \sqrt{3} }{ ({ \sqrt{3} )}^{2} } = \frac{3 \sqrt{3} }{3} = \sqrt{3}$

$\frac{16}{2 \sqrt{2} } = \frac{8}{ \sqrt{2} } = \frac{8 \sqrt{2} }{ ({ \sqrt{2} })^{2} } = \frac{8 \sqrt{2} }{2} = 4 \sqrt{2}$