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# FP2 Hyperbolic Functions Tweet

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1. FP2 Hyperbolic Functions
Hi,

I'm trying to do this past paper question and I don't understand how to get to the second line of the solution from the mark scheme:

I understand that there has been integration by parts but I specifically don't know how it is known that

integrates to

Is there a special rule that I'm missing? I've seen a lot of similar solutions where the solution is a fraction of the root, but I don't understand how they do it in one step.

Thanks in advance to anyone who replies
2. Re: FP2 Hyperbolic Functions
(Original post by Horchata)
Hi,

I'm trying to do this past paper question and I don't understand how to get to the second line of the solution from the mark scheme:

I understand that there has been integration by parts but I specifically don't know how it is known that

integrates to

Is there a special rule that I'm missing? I've seen a lot of similar solutions where the solution is a fraction of the root, but I don't understand how they do it in one step.

Thanks in advance to anyone who replies

This is of the form,

So if you differentiate , you can find the answer.
3. Re: FP2 Hyperbolic Functions
(Original post by raheem94)

This is of the form,

So if you differentiate , you can find the answer.
OOHHH, should have seen that. Thanks so much!
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