Actually, \( u + rac{1}{u} = 2 \) implies \( u = 1 \) (since for complex \(u\), this only holds if \(|u| = 1\) and conjugate symmetry, but equality to 2 forces \(u = 1\) in \( \mathbb{C} \) only if real and positive, but let's solve generally).

Mon, 04 May 2026 14:26:33 +0000

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