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HSC 2015 MX2 Integration Marathon (archive) (1 Viewer)

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Kaido

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Re: MX2 2015 Integration Marathon

Oh fuark, i made an error in my subtraction, brb
 

Kaido

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Re: MX2 2015 Integration Marathon

fuar now the integral won't work since i made the mistake ._.

hint plox
 

Drsoccerball

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Re: MX2 2015 Integration Marathon

i feel as though it's a substitution of something like :
 
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Re: MX2 2015 Integration Marathon

lol I let u = 3/2 - x to attempt to change it into an integral "property" since it changes borders to -1/2 and 1/2, but still cant do anything
 
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Drsoccerball

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Re: MX2 2015 Integration Marathon

Brain fart ... how do you factorise 1+x^4
 

Drsoccerball

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Re: MX2 2015 Integration Marathon

has anyone solved ekmans question
 

Drsoccerball

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Re: MX2 2015 Integration Marathon

Made this question(probs been integrated before but this is gold here goes: )
 

Sy123

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Re: MX2 2015 Integration Marathon

 

Sy123

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Re: MX2 2015 Integration Marathon

 

Sy123

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Re: MX2 2015 Integration Marathon

Is the answer:
n!/(r+1)^n+1
Something like a (-1)^{n-1} or (-1)^n at the front but other than that, that looks correct
 

Ekman

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Re: MX2 2015 Integration Marathon

Something like a (-1)^{n-1} or (-1)^n at the front but other than that, that looks correct
Dammit I forgot the (-1)^n .
 

Chlee1998

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Re: MX2 2015 Integration Marathon

I doubt there's a solution for Ekman's question, although I might be wrong cause I didn't spend enough time on it
 
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