# Thread: Differentiate sqrt{1 + e^x}

1. ## Differentiate sqrt{1 + e^x}

Differentiate $\displaystyle f(x)= \sqrt{1+e^x}$

2. Originally Posted by Stud778
$\displaystyle f(x)= \sqrt{1+e^x}$
The purpose of this forum is not to test our psychic abilities, it's for you to get help with mathematical problems. Please kindly state exactly what help you need.

3. Originally Posted by Stud778
$\displaystyle f(x)= \sqrt{1+e^x}$
What have you tried? What is the difficulty you are having with this?

WHAT IS THE QUESTION

CB

4. This thread is here i guess because (s)he gets stuck on taking the derivative of this function :

$\displaystyle f(x) = \sqrt{ 1 + e^x }$

$\displaystyle f'(x) = \frac{e^x}{2\sqrt{1 + e^x} }$

5. Originally Posted by simplependulum
This thread is here i guess because (s)he gets stuck on taking the derivative of this function :

$\displaystyle f(x) = \sqrt{ 1 + e^x }$

$\displaystyle f'(x) = \frac{e^x}{2\sqrt{1 + e^x} }$
I have assumed this too and have edited the original post accordingly.