Question

o vald
6. Calcule o valor de:
a) 3-2
d) 10-5
b) (+2/7)-1
c) (-5)-1
f) 20-2. e)(-5/2)-2
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Answer 1

a) 3-² = 1/3² = 1/3.3 = 1/9

d) 10-⁵ = 1/10⁵

b) (+2/7)-¹ = (7/2)¹ = 7/2

c) (-5)-¹ = 1/-5 = -1/5

f) 20-² = 1/20² = 1/20.20 = 1/400

e)(-5/2)-² = (-2/5)² = (-2)²/5² = 4/25

Answer 2

Resposta: espero ter

Explicação

passo a passo:

A=1/

B=+7/

C=-1/

D=1/10000

E=+4/25

F=1/400