$\displaystyle \int 3e^x dx$
Last edited by mr fantastic; Jun 9th 2010 at 07:21 PM. Reason: Re-titled.
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Originally Posted by Minino777 $\displaystyle \int 3e^x dx$ What do you know about the integrals of exponential functions
Some rules for you to use... $\displaystyle \int e^x dx = e^x + C$ where $\displaystyle C$ is a constant. $\displaystyle \int a f(x) dx = a \int f(x) dx$ where $\displaystyle a$ is a constant and $\displaystyle f(x)$ is some function.
Is this the way to start: $\displaystyle \int 3e^x dx= 3e^x + C$
Although it is the correct answer, you should start by taking the constant 3 out of the integral sign.
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