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Complex numbers 2 — Question 7

QCAA 2024, Paper 2 · 1 mark

Q7 · 2024 · Technology-activeSimple familiar1 mark

QUESTION 7

Determine the number of roots of w8=1w^8=1 that can be expressed in the form a+bia+bi, where a,b∈R+a,b\in\mathbb R^+.
(A)
0
(B)
1
(C)
2
(D)
3
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