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We use parts for this integration even though there is only one term! make ln(x)=1ln(x)

How to do integration by parts

If you have a function that you need to integra...

Diffusion is described as the movement of molecules from a high concentration to a low concentration, through a concentration gradient until evenly spread out 

Savoir is used when you know a fact, or how to do something eg I know how to get there, I know that he arrived. It is followed by que/qui/comment... (that, who etc) eg Je sais qu'il est a...

Here, we must apply both chain and product rules. The chain rule can be used to find the derivative of a function in the form e^f(x), like this one. However it is useful to know that this will r...