Prove that the expression e*/(1+ e*)² is an even function of x.

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**Problem:**

Prove that the expression \( e^x/(1 + e^x)^2 \) is an even function of \( x \).
Transcribed Image Text:**Problem:** Prove that the expression \( e^x/(1 + e^x)^2 \) is an even function of \( x \).
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