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if a+ib=((x+i)^2)/((2*x_i),prove that a^2+b^2=((x^2+1)^2)/((2*x+i))
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if a+ib=((x+i)^2)/((2*x_i),prove that a^2+b^2=((x^2+1)^2)/((2*x+i))
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