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Mathematics
Mathematics
Problem
If
z
=
2
+
i
z = 2 + i
z
=
2
+
i
and
w
=
1
−
2
i
w = 1 - 2i
w
=
1
−
2
i
evaluate
2
z
+
w
z
2z + wz
2
z
+
w
z
.
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