Question

Determine o sinal do produto:

a) ( + ) . ( + ) =
b) ( + ) . ( – ) =
c) ( – ) . ( – ) =
d) ( – ) . ( + ) =
e) ( + ) . ( + ) . ( + ) =
f) ( + ) . ( – ) . ( – ) =
g) ( – ) . ( + ) . ( + ) =
h) ( – ) . ( – ) . ( – ) =
i) ( – ) . ( + ) . ( – ) . ( + ) =
j) ( – ) . ( – ) . ( – ) . ( – ) =
k) ( – ) . ( – ) . ( – ) . ( + ) . ( + ) =
l) ( – ) . ( – ) . ( – ) . ( – ) . ( – ) =
m) ( – ) . ( + ) . ( + ) . ( + ) . ( – ) =
n) ( – ) . ( + ) . ( – ) . ( + ) . ( – ) =

Answer 1

Reposta;

Explicação passo-a-passo: isso e muito facil