Question

Calcule o valor de:
a) 8 elevado a 1/2
b) 144 elevado a -1/2
c) (0,2) elevado a 1/2
d) 16 elevado a 5/2
e) 27 elevado a 2/3
f) 0,09 elevado a -1/2
g) 16 elevado a 3/4
h) 8 elevado a -1/2
i) 0,001 elevado a -2/3

Answer 1

a)8)½. = 2³)½=(2².2)½=2(2)½. resp.: 2raíz de 2

b). 1/ 144)½ =1/(12²)½= 1/12. resp.: 1/12

c)(0,2)½ =(2/10)½=( 1/5)½=(5)½)5. resp (5)½/5

d)16)elev a 5/2 4²)elev.5/2.

resp.:4elev a 5. =1024

e)(27)⅔=(3³)⅔=(3)²=9. resp.:9

f)(9/100)-½=(100/9)½=(10²/3²)½=10/3 resp. 10/4

g)(16)¾=(4²)¾=(2⁴)¾=(2³)=8. resp.: 8

h)(8)-½(1/8)½(1/2².2)½(1/2(2(½)(2)½/4.

resp (2)½/4. raíz de 2 sobre 4.

i)((1/1000)-⅔=(1000)⅔=(10³)⅔=(10²)=100


resp.100