1 – Efetue os cálculos e complete com os símbolos >, <

, = :

a) 5

2

_______5

−2

b) 5

0

________ (

1

5

)

0

c) 5

−1

_________0,2

d) 3

0

_________0

3

e) 3

−2

_______ − 3

2

f) −9

0

__________(−9)

0

2 – Determine o valor de x em cada igualdade:

a) 2

= 16 b) 2

=

1

4

c) 9

= 1

d) (

1

2

)



= 2 e) (

2

3

)



=

9

4

f) (−5)

=

1

25

3 – Resolva as expressões:a) (3

0 + 3

−1

) ÷ (3

0 − 3

−1

) =

b) √

4

2÷4−1

2

3÷2−1 =

c) (





)

2

÷ (





)

−2

=​