Explicație pas cu pas:
[tex]\frac{2}{ \sqrt{2} } = \frac{2 \sqrt{2} }{ \sqrt{2} \times \sqrt{2} } = \frac{2 \sqrt{2} }{2} = \sqrt{2} \\ [/tex]
[tex]\frac{6}{ \sqrt{2} } = \frac{6 \sqrt{2} }{ \sqrt{2} \times \sqrt{2} } = \frac{6 \sqrt{2} }{2} = 3 \sqrt{2} \\ [/tex]
[tex]\frac{ - 2}{ \sqrt{5} } = - \frac{2 \sqrt{5} }{ \sqrt{5} \times \sqrt{5} } = - \frac{2 \sqrt{5} }{5} \\ [/tex]
[tex] \frac{5}{ \sqrt{15}} = \frac{5 \sqrt{15} }{15} = \frac{ \sqrt{15} }{3} \\ [/tex]
[tex]- \frac{11}{ \sqrt{3} } = \frac{11 \sqrt{3} }{ \sqrt{3} \times \sqrt{3} } = - \frac{11 \sqrt{3} }{3} \\ [/tex]
[tex]\frac{7}{ \sqrt{7}} = \frac{7 \sqrt{7} }{ \sqrt{7} \times \sqrt{7} } = \frac{7 \sqrt{7} }{7} = \sqrt{7} \\ [/tex]
[tex]- \frac{10}{ \sqrt{10} } = - \frac{10 \sqrt{10} }{ \sqrt{10} \times \sqrt{10} } = - \frac{10 \sqrt{10} }{10} = - \sqrt{10} \\ [/tex]
[tex]\frac{48}{ \sqrt{6} } = \frac{48 \sqrt{6} }{ \sqrt{6} \times \sqrt{6} } = \frac{48 \sqrt{6} }{6} = 8 \sqrt{6} \\ [/tex]
