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Anyone need help with Edexcel C4 (anyone need help with c4 past paper questions?) watch

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    Hey there, would you like some help with c4 past paper questions?

    I would be more than glad to help

    thanks!!
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    not a specific paper, but when do you change the integral limits?? I am never sure when to do it.
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    (Original post by skk90)
    not a specific paper, but when do you change the integral limits?? I am never sure when to do it.
    i 've just dont a parametric equation involving that.
    and by the looks of it it seems its after you form the intergration equation.
    not 100% sure but im pretty certain it is (:
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    yesssss would be so helpful if you can do this, i swear its a bit hard for c4...

    was in the jan 2009 paper, last question

    you work out that 2t^{3}-5t^{2}-16t-9 = 0
    but then how are you supposed to find t from that?
    in the mark scheme it says 'a realisation that (t+1) is a factor'
    to get (t+1)(2t^{2}-7t-9) = 0 (which you can then work out t from)
    how are you supposed to 'realise' that though???
    cheers!

    qp:http://www.freeexampapers.com/FreeEx...IwMDktMDEucGRm
    ms: http://www.freeexampapers.com/FreeEx...ktMDEgTVMucGRm
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    I didn't realise that (t+1) was a factor as well lol
 
 
 
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