Question

por favor, me ajudem!

A) (2/3)-²=
B) (-2/3)-³=
C) (1/5)-⁴=
D) (1/9)-²=
E) (11/2)-¹=
F) (2/8)-³=
G) 5-³=
H) 10-⁹=​

Answer 1

Oie, Td Bom?!

A)

$( \frac{2}{3} ) {}^{ - 2} = ( \frac{2}{3} ) {}^{2} = \frac{9}{4}$

B)

$( - \frac{2}{3} ) {}^{ - 3} = ( - \frac{2}{3} ) {}^{3} = - \frac{27}{8}$

C)

$( \frac{1}{5} ) {}^{ - 4} = 5 {}^{4} = 625$

D)

$( \frac{1}{9} ) {}^{ - 2} = 9 {}^{2} = 81$

E)

$( \frac{11}{2} ) {}^{ - 1} = \frac{2}{11}$

F)

$( \frac{2}{8} ) {}^{ - 3} = ( \frac{1}{4} ) {}^{ - 3} = 4 {}^{3} = 64$

G)

$5 {}^{ - 3} = \frac{1}{5 {}^{3} } = \frac{1}{125}$

H)

$10 {}^{ - 9} = \frac{1}{10 {}^{9} } = \frac{1}{1000000000}$

Att. Makaveli1996