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Question Number 132967 by mohammad17 last updated on 17/Feb/21

w h e r e i s f u n c t i o n f (z) = z R e z + \bar{z l n z} + \bar{z}

d e r i v a b l e, t h e n f i n d t h e d e r v a i t i v e ?

Commented by mohammad17 last updated on 18/Feb/21

? ? ? ?