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[" 9.How then "(1+2i)/(1-(1-i)^(2))" an ...

[" 9.How then "(1+2i)/(1-(1-i)^(2))" an "pi:sin A" alth "],[[" (a) "1," (b) "2],[" (c) "(1)/(2)," (d) "(1)/(4)]]

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