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Prove that if \(w,z\) are complex numbers such that \(|w|=|z|=1$\)and \(wz\ne -1 \), then \(\frac{w+z}{1+wz}\) is a real number.

 Jan 5, 2020
 #1
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why don't you look at what guest posted on your last question? you don't have to write up the same exact question twice

 Jan 5, 2020

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