Question

Calcule as potências: a) (2/3)² b) (4/7)² c) (7/5)² d) (1/3)² e)(5/3)²

Answer 1

Explicação passo-a-passo:

A)

$( \dfrac{2}{3} ) {}^{2}$

$\dfrac{2 {}^{2} }{3 {}^{2} }$

$\dfrac{4}{9}$

B)

$( \dfrac{4}{7} ) {}^{2}$

$\dfrac{4 {}^{2} }{7 {}^{2} }$

$\dfrac{16}{49}$

C)

$( \dfrac{7}{5} ) {}^{2}$

$\dfrac{7 {}^{2} }{5 {}^{2} }$

$\dfrac{49}{25}$

D)

$( \dfrac{1}{3} ) {}^{2}$

$\dfrac{1 {}^{2} }{3 {}^{2} }$

$\dfrac{1}{9}$

E)

$( \dfrac{5}{3} ) {}^{2}$

$\dfrac{5 {}^{2} }{3 {}^{2} }$

$\dfrac{25}{9}$