I will do it tmmrw as I have been busy with some other work. Just remind me again Ill do it. But glancing at it try to look at some factoring of 2^r and r! As that is what these types usually require.

Posted from TSR Mobile

Reply 23

username1162972

Original post by xyzmaster

Part a

ImageUploadedByStudent Room1429741596.229455.jpg

Looked interesting so why not!

Posted from TSR Mobile

Reply 24

xyzmaster

Original post by physicsmaths

Looked interesting so why not!

Posted from TSR Mobile

Thank you for your help. But I was wondering if you could explain the fourth line of working. How does r! Become squared and 2^r added to it ?

Reply 25

username1162972

Original post by xyzmaster

Thank you for your help. But I was wondering if you could explain the fourth line of working. How does r! Become squared and 2^r added to it ?

Well i noted the result i want to prove below so i know what im aiming for. I was missing a 2^r at the bottom so i multiplied top and bottom by 2^r. And notice how the required result is (2r r)= 2r!/(r!)^2
So at the top all the even terms are missing which are 2x4........2r-2x2r factoring 2^r out of this and we get 2^r(r!)(3x5x7..........2r-1)= 2r!since i want 2r! At the top i now multiply top and bottom by r! To give the desired result.

Posted from TSR Mobile

Reply 26

xyzmaster

Original post by physicsmaths

Thank you so much for your help :smile:

Reply 27

username1162972

Original post by xyzmaster

Thank you so much for your help :smile:

No problem. Helps my revision too. Very manipulaive question though.

Posted from TSR Mobile

Reply 28

MohinxP

Hey guys,

I'm currently doing Maths, Further Maths and Physics. I'm looking to pick up AEA and start revising for it asap. If I did do this, I would have about 1-2 hours a day for AEA revision and 3 days before the exam. Do you think it's possible to obtain a Merit with such a short amount of time?

Reply 29

tiny hobbit

Original post by MohinxP

AEA isn't about revision, since it involves only C1 - 4, which you are presumably comfortable with since you are doing FM. What it does require is some practice at the sort of questions they ask.

A useful resource, with extended solutions is here:
http://www2.warwick.ac.uk/fac/sci/statistics/courses/aea

Reply 30

TeeEm

Original post by Krollo

Do you think there's much point doing AEA in Y12 if I'm already doing STEP 1, in terms of offers? I'm not sure if it's worth the extra prep tbh

Posted from TSR Mobile

not really extra prep, unless you are referring to doing some more papers

Reply 31

TeeEm

Original post by lyddsssss

Does anyone know where you can find the grade boundaries for each paper?

here it is

AEA, GRADE BOUNDARIES, 2002-2014.pdf12.4KB

Reply 32

TeeEm

Original post by MohinxP

depends on your ability and your depth of understanding of the core units C1 - C4

Reply 33

Krollo

To restate my question - is there point sitting the AEA exam if I'm already doing STEP 1 in year 12? I think not, but I was wondering what you thought...

Posted from TSR Mobile

Reply 34

MohinxP

Could you guys provide some revision materials please? Atm I have the link from tiny hobbit (warwick extended solutions) and all of the past papers. Is there anything else that would be useful?

Reply 35

TeeEm

Original post by MohinxP

Could you guys provide some revision materials please? Atm I have the link from tiny hobbit (warwick extended solutions) and all of the past papers. Is there anything else that would be useful?

step papers (core questions only)

booklets on the relevant topics from my site that are rated (****)

(edited 8 years ago)

Reply 36

MohinxP

Thanks!

I've been told by one of my friends that took AEA last year that I may need to know things such as number theory (Sn = 1+2+3+4+... = -1/12) etc.

I was wondering whether this is true or not and if so, how many other things I would need to know that are not on the syllabus?

Also, I am on your website now. Will I be needing the majority of the standard topic booklets if not all?

Reply 37

TeeEm

Original post by MohinxP

(edited 8 years ago)

Reply 38

TeeEm

Original post by MohinxP

I do not think you need to know anything extra...

Reply 39

11234

hi I'm just a bit stuck on understanding the June 2008 aea question 7b on angle bisectors. I tried to use the angle bisector theorem but that didn't lead me to the right answer so could anyone point out where I went wrong. I used the able bisector theorem on CA giving me 2/5CA + OC giving X . Then I subtracted OB from OX but somehow it wasn't right could anyone help?