Question

urgenteeeee
1) Racionalize o denominador das frações.
a)3/√2
b)1√5
c)5/√14
d)12/√16
e)√12/√7
f)√3/8

Answer 1

a) $\frac{3 \sqrt{2} }{2}$
b) $\frac{ \sqrt{5} }{5}$
c) $\frac{5 \sqrt{14} }{14}$
d) 12√16/√16.√16 =  (12. 4 )/16 = 48/16 = 3
e) √12.√7 / √7.√7 = √84/7 = 2√21/7
f) √3/8 = √3/8 

Answer 2

a)$\frac{3}{\sqrt{2}} . \frac{\sqrt{2}}{\sqrt{2}} = \frac{3\sqrt{2}}{2}$
b)$\frac{1}{ \sqrt{5}} . \frac{\sqrt{5}}{\sqrt{5}}= \frac{ \sqrt{5} }{5}$
c)$\frac{5}{ \sqrt{14} }. \frac{ \sqrt{14}}{ \sqrt{14}}= \frac{ 5\sqrt{14} }{14}$
d)$\frac{12}{ \sqrt{16} }= \frac{12}{4}=3$
e)$\frac{ \sqrt{12} }{ \sqrt{7} }. \frac{ \sqrt{7} }{ \sqrt{7}}= \frac{2 \sqrt{21} }{7}$
f) já está.