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Edexcel C2 20th May 2015 Official Thread

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Reply 1460

a.a.k

Original post by InkHeart

I go stuck on this one as well.

Patt a and b

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Reply 1461

knoxy.22

Original post by mymomsaidstudy

GUYS HELP https://c4a3f001dcd45afe69d0ceec83003f9fbc283b2c.googledrive.com/host/0B1ZiqBksUHNYSGtmV3dzVVVvNTg/June%202014%20(R)%20QP%20-%20C2%20Edexcel.pdf
the very last question?? i have no idea how to do it

well the first part is midpoint of two points and then equations or a circle which is pretty simple then I believe the chord meets at right angles to shortest line from a so you can use some sort of pythag then the last bit will just be trig (draw a diagram )

Reply 1462

ahony004

Original post by Haych97

We need to prove the sum formula not the sum to infinity formula though

yh not the sum to infinity but the other ones

Reply 1463

a.a.k

Can people plz do a screen shot of the question so we dont have to download a full paper for one question

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Reply 1464

Haych97

Original post by enaayrah

Sum to n terms or sum to infinity?

Sum to n terms came up asking for a proof, you don't need to know the proof for sum to infinity

Reply 1465

ahony004

Original post by enaayrah

Sum to n terms or sum to infinity?

just the sum of n terms one

Reply 1466

Lynku555

Original post by enaayrah

Sum to n terms or sum to infinity?

http://qualifications.pearson.com/content/dam/pdf/A%20Level/Mathematics/2013/Exam%20materials/C2_Jan_2007_paper.pdf

10a is proof of sum of n terms

no infinity bitchhhhhhh

Reply 1467

43zombiegit

Original post by InkHeart

I go stuck on this one as well.

It's not that hard, which bit do you not get?

Reply 1468

mymomsaidstudy

Original post by a.a.k

Patt a and b

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thanks a lot but i mean like d the veeeeery last question

Reply 1469

a.a.k

Original post by mymomsaidstudy

thanks a lot but i mean like d the veeeeery last question

On it

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Reply 1470

frozo123

Original post by InkHeart

I go stuck on this one as well.

area of a triangle is 1/2absinC
so 1/2x^2sin60 ( sin60 is root3/2)
then the rectangle is xy
the semi circle is pi/2(1/2x)^2 which is pi/8x^2
rearrange for y
hope that helps :smile:

ps, what kind of beta male name is inkheart?

Reply 1471

mymomsaidstudy

Original post by 43zombiegit

It's not that hard, which bit do you not get?

d is the one I'm kinda stuck on or maybe my brain has just lost all its functional means

Reply 1472

43zombiegit

Original post by mymomsaidstudy

d is the one I'm kinda stuck on or maybe my brain has just lost all its functional means

Let me try it and mark it and I'll come back to you..

Reply 1473

a.a.k

Original post by mymomsaidstudy

thanks a lot but i mean like d the veeeeery last question

I do t know sorry

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Reply 1474

mymomsaidstudy

Original post by a.a.k

I do t know sorry

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its okay don't worry thank a lot for the effort though :smile:

good luck for tomorrow

Reply 1475

a.a.k

Original post by mymomsaidstudy

its okay don't worry thank a lot for the effort though :smile:

good luck for tomorrow

You too
If u do it then share

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Reply 1476

LearningGeek

Original post by gdunne42

If a paper has to be replaced for any reason - a batch of papers goes missing in the post, a set of papers is accidentally leaked by an exam centre due to a cock up, or someone with access to the papers maliciously leaks them to facilitate cheating - a reserve paper is pulled from the secure collection of already written/tested exam papers and printed for use. At that point it becomes the real paper and that's the one that is available from past paper archives. The original paper that was intended to be used is usually released to teachers for internal use but there may not be an official mark scheme to go with it. R papers are not reserved papers they are Regional papers for use by candidates outside the UK. All but the latest ones can be downloaded from the edexcel web site. There are no C2 papers that have needed to be replaced.

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