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Mathematics
Mathematics
Problem
If
z
=
x
+
i
y
z = x + iy
z
=
x
+
i
y
and
∣
2
z
+
1
∣
=
∣
z
−
2
i
∣
|2z + 1| = |z - 2i|
∣2
z
+
1∣
=
∣
z
−
2
i
∣
, show that
3
(
x
2
+
y
2
)
+
4
(
x
+
y
)
=
3
3(x^2 + y^2) + 4(x + y) = 3
3
(
x
2
+
y
2
)
+
4
(
x
+
y
)
=
3
.
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