Question

4. Rationalizează numitorul: ​ Va rog dau coroană

Answer 1

Răspuns:

$\frac{3}{ \sqrt{5} } = \frac{ 3\sqrt{5} }{5}$

$\frac{7}{ \sqrt{3} } = \frac{7 \sqrt{3} }{3}$

$\frac{ - 5}{3 \sqrt{2} } = \frac{ - 15 \sqrt{2} }{18} = - \frac{5 \sqrt{2} }{3}$

$\frac{11}{ - 3 \sqrt{11} } = \frac{ - 33 \sqrt{11} }{99} = - \frac{ \sqrt{11} }{3}$

$- \frac{15}{2 \sqrt{5} } = - \frac{30 \sqrt{5} }{20} = - \frac{3 \sqrt{5} }{2}$

$- \frac{90}{ \sqrt{6} } = - \frac{90 \sqrt{6} }{6} = - 15 \sqrt{6}$