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Question 1 · 3 marks
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Edexcel 9FM0
The locus of
z
z
z
is
∣
z
−
1
+
4
i
∣
=
3
|z - 1 + 4i| = 3
∣
z
−
1
+
4
i
∣
=
3
.
Find the centre and radius of the circle.
centre
=
\text{centre} =
centre
=
radius
=
\text{radius} =
radius
=
i
xⁿ
a/b
√
π
(
)