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Question Number 104207 by PengagumRahasiamu last updated on 20/Jul/20
Answered by bemath last updated on 20/Jul/20
x2−x+1=0x=1±i32=12±i32havenorealroots.Sumofrealrootisnothing
Answered by OlafThorendsen last updated on 20/Jul/20
ifarootisz=α+iβthesecondrootisz_=α−iβThesumofitsrealrootisz+z_=2αInfactthesumis−ba=−−11Soz+z_=1butthequestionisnotclearyoushouldanswer‘‘nothing″
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