Let f(z)=(z2 z 1)7. If 2+ +1=0 and Im( )>0, then find f( ). – McqOptions

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1.	Let f(z)=(z2 z 1)7. If 2+ +1=0 and Im( )>0, then find f( ).
A.	128
B.	-128
C.	128 <sup>2</sup>
D.	-128 <sup>2</sup>
Answer» D. -128 <sup>2</sup>

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