How does e^-x/(1+e^-x)^2 become 1/(1+e^-x) * [1 - 1/(1+e^-x)]?

ak27

New member
Joined
Mar 12, 2019
Messages
1
how to make e^-x/(1+e^-x)2 into 1/(1+e^-x) * [1 - 1/(1+e^-x)]?
 

Dr.Peterson

Elite Member
Joined
Nov 12, 2017
Messages
3,595
Try taking it in reverse. How would you simplify \(\displaystyle \frac{1}{1+e^{-x}} \cdot \left[1 - \frac{1}{1+e^{-x}}\right] \)?
 
Top