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Let z ∈ C be such that |z| < 1. If ω = ) z 1 ( 5 z 3 5 − + then :

1. 4 Im ( ω ) > 5
2. 5 Re ( ω ) > 1
3. 5 Im ( ω ) < 1
4. 5 Re ( ω ) > 4

Correct answer: 5 Re ( ω ) > 1

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