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[" 23) "[" 3) "f(z)=(7-z)/(1-z^(2))" ,wh...

[" 23) "[" 3) "f(z)=(7-z)/(1-z^(2))" ,where "z=1+2i" ,then "],[|f(z)|" is -equal to "],[" a) "|z|]]

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