C3 Integration

I'm trying to find the shaded area enclosed by y = lnx, y =1, y=3 and the y-axis

Answer in terms of e.

Help please...?? :confused:

I'd prefer the method by the way, I'd like to get the answer myself, otherwise I won't understand, thanks :smile:

You want to turn this into some sort of integral wrt y. At the moment you have a function of x.

Bigger hint:

Spoiler

PindropSilence

I'm trying to find the shaded area enclosed by y = lnx, y =1, y=3 and the y-axis

Answer in terms of e.

Help please...?? :confused:

I'd prefer the method by the way, I'd like to get the answer myself, otherwise I won't understand, thanks :smile:

First things first. Sketch the three lines so you know what your looking for. Then you should see an integral forming between two limits.

The Muon

First things first. Sketch the three lines so you know what your looking for. Then you should see an integral forming between two limits.

Ohh yes,

Thanks guys, = e^3-e... or e(e^2-1) :smile:

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