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Let C be the set of complex numbers. Prove that the mapping f:C→R given by f(z)=|z|, ∀z∈C, is neither one-one nor onto. |
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Answer» Let C be the set of complex numbers. Prove that the mapping f:C→R given by f(z)=|z|, ∀z∈C, is neither one-one nor onto. |
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