Question

1 - (3/5)²=
(5/9 . 7/10)²=
(8/3)² + (11/9)=

Answer 1

a)

$1- ( \frac{3}{5})^{2} =$

$1- \frac{ 3^{2} }{ 5^{2} } =$

$1- \frac{9}{25} =$

mmc = 25

$\frac{25-9}{25} =$

$\frac{16}{25} =$     simplificando

$\sqrt{ \frac{16}{25} } = \frac{4}{5}$

b)
$( \frac{5}{9} . \frac{7}{10} )^{2}$

$( \frac{35}{90} )^{2} =$

$\frac{1225}{8100} =$ simplificando

$\frac{49}{324} =$

$\sqrt{ \frac{49}{324} } = \frac{7}{18}$

c)
$( \frac{8}{3}) ^{2} + \frac{11}{9} =$

$\frac{64}{9} + \frac{11}{9} =$

$\frac{64+11}{9} =$

$\frac{75}{9} = \frac{25}{3}$