Let f(z)=(z2–z–1)7. If α2+α+1=0 and Im(α)>0, then find f(α). – McqOptions

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1.	Let f(z)=(z2–z–1)7. If α2+α+1=0 and Im(α)>0, then find f(α).
A.	128α
B.	-128α
C.	128α2
D.	-128α2
Answer» D. -128α2

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