January 2019 0 248 Report

A) Fie z ∈ C.Aratati ca daca 2z+3\bar{z} \in R , atunci z ∈ R.


b) Fie z ∈ C.Aratati ca daca z^2 + \bar{z}^2 \ \geq \ 2|z|^2 ,atunci z ∈ R.

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