Question

- Determine o sinal de cada produto: a) ( + ) x ( + ) x ( + ) = b) ( - ) x ( + ) x ( - ) = c) ( - ) x ( - ) x ( + ) = d) ( - ) x ( - ) x ( - ) = e) ( + ) x ( - ) x ( - ) x ( + ) = f) ( - ) x ( + ) x ( + ) x ( - ) = g) ( - ) x ( + ) x ( - ) x ( - ) = h) ( - ) x ( - ) x ( - ) x ( - ) =

Answer 1

Resposta:

a) +

b) +

c) +

d) -

e) +

f) +

g) -

h) +

Answer 2

Resposta:

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Explicação passo-a-passo:

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