# Integrate 3 e^x

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• June 9th 2010, 12:56 PM
Minino777
Integrate 3 e^x
$\int 3e^x dx$
• June 9th 2010, 01:00 PM
e^(i*pi)
Quote:

Originally Posted by Minino777
$\int 3e^x dx$

What do you know about the integrals of exponential functions
• June 9th 2010, 01:01 PM
Deadstar
Some rules for you to use...

$\int e^x dx = e^x + C$ where $C$ is a constant.

$\int a f(x) dx = a \int f(x) dx$ where $a$ is a constant and $f(x)$ is some function.
• June 9th 2010, 01:12 PM
Minino777
Constant rule?
Is this the way to start:
$\int 3e^x dx= 3e^x + C$
• June 9th 2010, 01:16 PM
p0oint
Although it is the correct answer, you should start by taking the constant 3 out of the integral sign.