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Question 1402d
Complex Numbers
Real and Purely Imaginary Numbers
Question
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The complex number
z
=
(
a
+
8
)
+
(
a
+
2
)
i
,
z=(a + 8) + (a + 2)\mathrm{i},
z
=
(
a
+
8
)
+
(
a
+
2
)
i
,
where
a
∈
R
,
{a \in \mathbb{R},}
a
∈
R
,
is real. Find
z
.
{z.}
z
.
Attempt
z
=
{z = }
z
=
Answer
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