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# Edexcel FP1 Thread - 20th May, 2016 watch

1. Hi does anyone know please whether all the mad as maths questions under ellipse are in the spec? http://madasmaths.com/archive/maths_...c_sections.pdf Thanks
2. (Original post by economicss)
Hi does anyone know please whether all the mad as maths questions under ellipse are in the spec? http://madasmaths.com/archive/maths_...c_sections.pdf Thanks
Ellipses? You don't do ellipses in FP1, do you?
3. (Original post by Zacken)
Ellipses? You don't do ellipses in FP1, do you?
I don't think so, I think I'm paranoid haha, is it just parabolas and rectangular hyperbola that we need to be able to do for FP1? Thanks
4. (Original post by economicss)
I don't think so, I think I'm paranoid haha, is it just parabolas and rectangular hyperbola that we need to be able to do for FP1? Thanks
Yep, just those two are on spec.
5. Thank you!
(Original post by Zacken)
Yep, just those two are on spec.

Here are all the relevant (to FP1) madasmaths booklets which I was able to pick out! Thought the direct links would be more useful than trying to search for them all manually. Maybe there are a few more I have missed, but these are what I have found! Many thanks to TeeEm - These work booklets are absolutely amazing revision for someone such as myself who has finished all of the actual examination papers! Many thanks!!
7. Hi, I was doing the June 2014 R paper and got stuck on knowing how many assumptions to make for the proof of question 9 (b). Can someone please explain the question to me?
8. (Original post by Glavien)
Hi, I was doing the June 2014 R paper and got stuck on knowing how many assumptions to make for the proof of question 9 (b). Can someone please explain the question to me?
You need only assume that:

and .

Then: where you substitute in from above.

Since it's a recurrence relation involving three terms, you need to make two assumptions. When there is only two terms, you make 1 assumption, etc...
9. (Original post by Zacken)
You need only assume that:

and .

Then: where you substitute in from above.

Since it's a recurrence relation involving three terms, you need to make two assumptions. When there is only two terms, you make 1 assumption, etc...
Gotcha, thanks!
10. (Original post by Glavien)
Gotcha, thanks!
Cheers.
11. Just under 3 weeks left . . .
12. Hi, please could anyone explain question 4e on exercise A here https://644625398389466aee0063322305...0NRNU0/CH5.pdf I can't really make sense of SB, thanks
13. (Original post by economicss)
Hi, please could anyone explain question 4e on exercise A here https://644625398389466aee0063322305...0NRNU0/CH5.pdf I can't really make sense of SB, thanks
Okay, so - first off, you can see in includes just odd numbers - in fact, it's two consecutive odd numbers multiplied together.

So, the general term is: , you want to add up these except starting from 3 * 5, so you need to start from .

Hence: and there are precisely terms in this summation, as required.
14. (Original post by Zacken)
Okay, so - first off, you can see in includes just odd numbers - in fact, it's two consecutive odd numbers multiplied together.

So, the general term is: , you want to add up these except starting from 3 * 5, so you need to start from .

Hence: and there are precisely terms in this summation, as required.
Ah I see, brilliant, thank you
15. (Original post by economicss)
Ah I see, brilliant, thank you
Cheers.
16. Hey guys,

I am really stuck on practice paper a Qu 5 in this link:

http://www.thestudentroom.co.uk/atta...7&d=1244566570

Surely it is impossible to part a before part b as u can't find the real root
17. (Original post by J.M.Keynes)
Hey guys,

I am really stuck on practice paper a Qu 5 in this link:

http://www.thestudentroom.co.uk/atta...7&d=1244566570

Surely it is impossible to part a before part b as u can't find the real root
Huh? You know two roots and you know the constant term.

You know that if three roots are of a cubic are then (in this case).

You know so
18. How can I expand this out if A and B are both matrices? I know that the order of multiplying matrices matters, so is there a particular way to know which way to order the matrices?

Its from the June 2014 R paper, question 6.
19. (Original post by Glavien)
How can I expand this out if A and B are both matrices? I know that the order of multiplying matrices matters, so is there a particular way to know which way to order the matrices?

Its from the June 2014 R paper, question 6.
You could just work out each bracket numerically and multiply, but if you do expand keep the order the same from left to right, so
20. (Original post by NotNotBatman)
You could just work out each bracket numerically and multiply, but if you do expand keep the order the same from left to right, so
Thanks!

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