Let f(z)=|1–z|, if zk=cos(2kπ/10)+isin(2kπ/10), then fi – McqOptions

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1.	Let f(z)=\|1–z\|, if zk=cos(2kπ/10)+isin(2kπ/10), then find the value of f(z1)×f(z2)×…×f(z9).
A.	10
B.	15
C.	20
D.	30
Answer» B. 15

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