Expanding exponential fucntions

[ThomasJR]

Homework Statement

Expand (1+e^(2x)), and (1+e^x)^2. Are they any different. I am confused please help

Homework Equations

The Attempt at a Solution

 

[micromass]

How would you expand $$(a+b)^2$$?

 

[Mark44]

Also, there's really nothing to do in expanding 1 + e^2x.

 

[ThomasJR]

I want to see how you guys expand it because i am stuck with a calculus integration problems which asks me to use u-substitution.
Integrate , 1/(1+e^x) Without using partial functions

 

[micromass]

What is the formula for (a+b)² ?

Now you take a=1 and b=e^x.

 

[Mark44]

I want to see how you guys expand it because i am stuck with a calculus integration problems which asks me to use u-substitution.
Integrate , 1/(1+e^x) Without using partial functions

Use the hint from Micromass to expand (1 + e^x)².

As far as your integration problem is concerned, partial fractions (not partial functions) is not the way to go to integrate 1/(1 + e^x).

 

[micromass]

Yeah, for the integration, I would substitute e^x with something else...