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Question 1419b
Complex Numbers
2019 Paper 1 Question 9ii Variant
Question
Generate new
The complex number
z
{z}
z
has modulus
1.
{1.}
1.
Find the modulus of the complex number
z
−
3
i
1
+
3
z
i
.
\frac{z - 3 \mathrm{i}}{1 + 3 z \mathrm{i}}.
1
+
3
z
i
z
−
3
i
.
[5]
Answer
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