Question

Abre a pergunta e Me ajudem por favor? 
- Escreva sob a forma de radical: 
a) $5 \frac{1}{4}$ =

b) $2 \frac{2}{3}$ =

c) $( \frac{1}{5}) \frac{2}{3}$ =

d) $25 \frac{1}{2}$ =

Answer 1

a)
$5 \frac{1}{4} = \frac{21}{4} = \sqrt{ \frac{21}{4} } = \frac{ \sqrt{21} }{2}$

b)
$2 \frac{2}{3} = \frac{8}{3} = \sqrt{ \frac{8}{2} }= \frac{2}{3} \sqrt{2}$

c)$\frac{2}{15} = \frac{ \sqrt{2} }{ \sqrt{15} } = \frac{ \sqrt{2} }{ \sqrt{15} } . \frac{ \sqrt{15} }{ \sqrt{15} } = \frac{ \sqrt{30} }{ \sq15 }$

d)
$\frac{51}{2} = \frac{ \sqrt{51} }{ \sqrt{2} } . \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{ \sqrt{102} }{2}$