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# Edexcel FP1 Thread - 20th May, 2016 watch

1. (Original post by LelouchViRuge)
Anyone want to have a go at these?

Meh, might as well do some easy maths. Getting a bit frustrated by the problem I'm currently on.

Question 1
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Base case: (by the way, you really don't need moduli signs there...

Assume then and we are done.
Question 2
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Parabola. Gradient function is so tangent at P is and re-labelling gets us the tangent at Q.

This means that they intersect at , since then and follows trivially.
Question 3
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PQ has equation .

At (1,0) - we have:

The normal has equation and this intersects the other normal when:

from the fact that .

Bonus
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Blah blah gradients blah blah too bored
2. (Original post by Zacken)
....
Sweet, those were not actually mod signs lol. They were [ .... ]

The second question was actually STEP 1. They have a lot of nice parabola questions which are easily accessible to people without C3/C4 knowledge
3. (Original post by LelouchViRuge)
The second question was actually STEP 1. They have a lot of nice parabola questions which are easily accessible to people without C3/C4 knowledge
Yeah, I know. STEP I, Q2, 2005, right?
4. (Original post by Zacken)
Yeah, I know. STEP I, Q2, 2005, right?
Did you just remember that on the spot? o.O

I'm guessing the first time you met that question, she made it a day you'd never forget?
5. (Original post by LelouchViRuge)
Did you just remember that on the spot? o.O

I'm guessing the first time you met that question, she made it a day you'd never forget?
Nah, I seem to remember all the questions I've done. Each STEP question has that distinct 'flavour' that sticks. If you want some more accessible STEP I questions, try these:

STEP I, 2012, Q4
STEP I, 2009, Q8
6. (Original post by aymanzayedmannan)
It's not on spec for the UK syllabus since you don't need to know how to turn it about any given angle.

However, the matrix is the matrix which rotates any matrix through an angle about O. You'd use this matrix to find .
Thanks
7. LelouchViRuge
have you finished learning the content for the FP1 one exam?
8. (Original post by Acrux)
LelouchViRuge
have you finished learning the content for the FP1 one exam?
Yup, finished it about a week or two ago

Wbu bud?
9. (Original post by LelouchViRuge)
Yup, finished it about a week or two ago

Wbu bud?
That's Brilliant
Unfortunately i'm about halfway through should i be worried
Have you Completed all your other modules
10. (Original post by Acrux)
That's Brilliant
Unfortunately i'm about halfway through should i be worried
Have you Completed all your other modules
Lol, nope, I still have 3 modules to cover. I started taking A levels seriously and started working around early March.

If you are not in my position, I'd say you are doing fine.

11. how do you get 2n(n+1) ?
is there a rule i'm missing?
what do you do when you get n instead of r in brackets?
12. (Original post by Yua)

how do you get 2n(n+1) ?
is there a rule i'm missing?
what do you do when you get n instead of r in brackets?
Consider when then you have but you also sum up from to , so you sum up I asked this question earlier and Zacken answered.
13. (Original post by NotNotBatman)
Consider when then you have but you also sum up from to , so you sum up I asked this question earlier and Zacken answered.
I've also answered this on the first couple of posts on this thread. Pretty popular question.
14. (Original post by aymanzayedmannan)
I've also answered this on the first couple of posts on this thread. Pretty popular question.
Oh yeah, I remember repping that, and it was a pretty popular question in my FM class last week. I don't recall seeing any questions of that type in the textbook and It's only been in an R paper.
15. (Original post by NotNotBatman)
Oh yeah, I remember repping that, and it was a pretty popular question in my FM class last week. I don't recall seeing any questions of that type in the textbook and It's only been in an R paper.
So make sure that you work through the R papers (and the appropriate questions on the IAL papers).
16. (Original post by tiny hobbit)
So make sure that you work through the R papers (and the appropriate questions on the IAL papers).
Definitely, I'm going to do an IAL paper today in fact.
17. (Original post by NotNotBatman)
Definitely, I'm going to do an IAL paper today in fact.
Leave out the question on each F1 paper about alpha and beta.
18. (Original post by tiny hobbit)
Leave out the question on each F1 paper about alpha and beta.
This was actually the only way my teacher has taught it, although I do know how to use other methods, so it should be fine.
19. (Original post by NotNotBatman)
This was actually the only way my teacher has taught it, although I do know how to use other methods, so it should be fine.
Has taught what? Are you doing IAL or "ordinary" A level?
20. I thought the edexcel FP1 book teaches Alpha and Beta way to work out the quadratic equation when given two complex roots?
Or are you guys talking about something else

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