The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

Edexcel C2 20th May 2015 *Official Thread*

Scroll to see replies

Original post by particlestudent
But it was easy right? :biggrin: I found it so easy


Yeah it was good and also unexpectedly short! Everyone pray for our paper tomorrow to be just like that

Posted from TSR Mobile
Original post by particlestudent
But it was easy right? :biggrin: I found it so easy


Very easy :yes:

Posted from TSR Mobile
Original post by enaayrah
For the rSn line, don't put the last term (ar^n+1) in, it just complicates things (and it can't really be a part of Sn if you think about it?)


The last term is not ar^n+1 its ar^n . un =ar^n-1 so r Un =ar^n

Posted from TSR Mobile
I don't c2 many people looking forward for the maths exam tomorrow
Original post by Lynku555
Good point!

I just get confused as to how ar^n - 1 minus ar^n cancel out idk why


Plug a number in as 'n' and take away fully, it should work out :wink:
Reply 1445
Avatar for a.a.k
a.a.k
2
Original post by Azzer11
Wtf different people are saying different things? We never got taught it...

Posted from TSR Mobile


The formula is on spec but we dont need to prove it or show whwre it comes from

Posted from TSR Mobile
Original post by samb1234
The last term is not ar^n+1 its ar^n . un =ar^n-1 so r Un =ar^n

Posted from TSR Mobile


Yeah that's what I meant :smile:
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
Original post by particlestudent
I don't c2 many people looking forward for the maths exam tomorrow


Pls stop :lol:
Original post by Azzer11
Wtf different people are saying different things? We never got taught it...

Posted from TSR Mobile


its 100% is I checked the spec last week and it says and I quote
'The proof of the sum formula should be known'
its on page 28 right hand side of the spec and in the 2007 January paper it came up as question 10a
Original post by a.a.k
The formula is on spec but we dont need to prove it or show whwre it comes from

Posted from TSR Mobile


yes we do check the spec page 28
Original post by a.a.k
Hulk smash calculators hulk eat calculator buttons

Posted from TSR Mobile


*Laughs evilly* Stupid beast. That was your only help for this exam you're worrying so much about. Asgardians don't need midgardian toys to do maths.
[What the heck am I doing??? Loki - stop it! I need to go to bed!]
Nope, that aint gonna happen any time soon.
Reply 1452
Avatar for a.a.k
a.a.k
2
Original post by ahony004
yes we do check the spec page 28


Theres two formula sum to n number and su to infinity idont we need to prove sum to i finity but we have to prove other onw

Posted from TSR Mobile
Original post by ahony004
its 100% is I checked the spec last week and it says and I quote
'The proof of the sum formula should be known'
its on page 28 right hand side of the spec and in the 2007 January paper it came up as question 10a


We need to prove the sum formula not the sum to infinity formula though
Original post by ahony004
its 100% is I checked the spec last week and it says and I quote
'The proof of the sum formula should be known'
its on page 28 right hand side of the spec and in the 2007 January paper it came up as question 10a


Sum to n terms or sum to infinity?
There is an explanation bee similar to this on examsolutions.net got to the edexcel videos>geometric sequences>I think it's the investment example. I've had to watch it a couple of times
Original post by mymomsaidstudy

I go stuck on this one as well.
Reply 1457
Avatar for a.a.k
a.a.k
2
Original post by InkHeart
*Laughs evilly* Stupid beast. That was your only help for this exam you're worrying so much about. Asgardians don't need midgardian toys to do maths.
[What the heck am I doing??? Loki - stop it! I need to go to bed!]
Nope, that aint gonna happen any time soon.


Calculators dont make a man
Man makes calculators.:dontknow:

Posted from TSR Mobile
Original post by LearningGeek
where can you access the reserved papers for past years?


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.


Posted from TSR Mobile
Original post by El-Presidente
Volume of a cone, pyramid, sphere...


That does not help..

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you