Thread: differential equation (checking a simplification)

I had a differential equation and I have also computed the general solution of the equation, but i want to check whether my simplification is right for the following

[−(e^−x)/(1 + e^x)] − [(e^−2x)/(1 + e^x)] = −e^(−2x)

Is this right...

Originally Posted by rajr

I had a differential equation and I have also computed the general solution of the equation, but i want to check whether my simplification is right for the following

[−(e^−x)/(1 + e^x)] − [(e^−2x)/(1 + e^x)] = −e^(−2x)

Is this right...