Complex Numbers

[TheWrathOfMath]

Given: w=(1+z)/(1-z), z is a complex number that's not equal to one.

Prove: Re(w) is greater than or equal to zero only if |z| is less than or equal to one.

 

[blamocur]

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[TheWrathOfMath]

New posts

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[blamocur]

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Sorry, I meant to post this link instead: https://www.freemathhelp.com/forum/threads/read-before-posting.109846/