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Question 1 · 3 marks
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Edexcel 9FM0
Express
z
=
−
2
+
2
i
z = -2 + 2i
z
=
−
2
+
2
i
in the form
r
e
i
θ
r\,e^{i\theta}
r
e
i
θ
,
where
r
>
0
r > 0
r
>
0
and
−
π
<
θ
≤
π
-\pi < \theta \le \pi
−
π
<
θ
≤
π
.
i
xⁿ
a/b
√
π
(
)
eˣ