User talk:MrMahn

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Complex Number Question
Regarding your question. If we assume that z ≠ –1, then we just need to multiply through:
 * $$\frac{1+z}{1+\overline{z}} = z \iff 1+z = z(1+\overline{z}) \iff 1+z = z + z\overline{z} \iff 1 = |z| \ . $$

— Fly by Night  ( talk )  13:57, 11 October 2010 (UTC)
 * For any number (z ≠ –1) with modulus 1, the left hand equation holds.
 * Any number (z ≠ –1) where the left hand equation holds must have modulus 1.