Question

es urgente por favor

Answer 1

Respuesta:

a) $- \frac{2}{3}$

b) $8$

c) $- \frac{6}{5}$

d) $\frac{31}{8}$

Espero haberte ayudado, si es así házmelo saber, gracias.

Answer 2

Respuesta:

A) es igual a -2/3, B) es igual a 8, C) es igual a -149/25, D) es igual a 31/8

Explicación paso a paso:

A)

[(-1/3)^-1]{(3/7)/[(-7/3)^-2]}

[(-3)^1]{(3/7)/[(-3/7)^2]}

-3+[(3/7)/(9/49)]

-3(7/3)

(-9+7)/3

-2/3

B)

[8^(2/3)]+{[(1/4)^(-2/4)]/2}+[81^(1/4)]

(2^2)+{[4^(2/4)]/2}+(3^1)

4+{[16^(1/4)]/2}+3

4+3+{[16^(1/4)]/2}

7+(2/2)

7+1

8

C)

[(-1/5)^-1]+(5^-2)-({√[(9/4)+4]}/[(2/5)^-1])

(-5)^1)+[(1/5)^2]-({√[(9+16)/4]}/[(5/2)^1])

-5+(1/25)-[√(25/4)]/(5/2)

[(-125+1)/25]-[(5/2)/(5/2)]

(-124/25)-1

(-124-25)/25

-149/25

D)

(-1/8)+{[(-81)*(-1/16)]^(1/4)}+{[(5/2)^2]/(5/2)}

(-1/8)+[(81/16)^(1/4)]+[(25/4)/(5/2)]

(-1/8)+(3/2)+(5/2)

(-1/8)+(3/2)+(5/2)

(-1/8)+[(3+5)/2]

(-1/8)+(8/2)

(-2+64)/16

62/16

31/8