03 CN 2022 - Matemática
Analise as igualdades abaixo e assinale a opção correta.
*
19
43
=
a
+
b
+
c
+
d
1
1
1
*
12
97
=
a
′
+
b
′
1
(
a
+
b
+
c
+
d
)
=
4
⋅
(
a
′
+
b
′
)
(
a
⋅
b
⋅
c
⋅
d
)
=
(
a
′
⋅
b
′
)
4
⋅
(
a
⋅
b
⋅
c
⋅
d
)
=
(
a
′
⋅
b
′
)
(
a
+
b
+
c
+
d
)
=
3
⋅
(
a
′
+
b
′
)
3
⋅
(
a
+
b
+
c
+
d
)
=
3
⋅
(
a
′
⋅
b
′
)
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