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Edexcel FP3 June 2015 - Official Thread watch

1. (Original post by LukeTownsend123)
For Question 8B, I did the whole question using the general focus and ellipse equations and not using the exact value. Then, I ended up with 2a and subbed in my a = 2 at the end, would I still gain full credit?
Yes
2. (Original post by LukeTownsend123)
For Question 8B, I did the whole question using the general focus and ellipse equations and not using the exact value. Then, I ended up with 2a and subbed in my a = 2 at the end, would I still gain full credit?
Well I don't see why it wouldn't be full marks - don't stress aha
3. In addition to this, on the vectors question I didn't calculate the right vectors. On part C I did a + lamda b + mu c and my method doing this was perfectly right following through to the perpendicular distance. Out of the six marks, how many would I gain?
4. (Original post by BP_Tranquility)
Cheers for the solutions
How many marks do you think I'd lose on 8a/8b if I accidentally used the wrong formula for finding the value of e/directrices/focii? (I used hyperbola instead if ellipse)

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possibly 4 ...The whole of (a)

then some more from part (b)

I do not know how this will be marked ... because part (b) now will not work if you have the wrong directrices
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5. (Original post by TeeEm)
possibly 4 ...The whole of (a)

then some more from part (b)

I do not know how this will be marked ... because part (b) now will not work if you have the wrong directrices
But I ended up with 4 despite that? Unless I did do part a correctly (using the correct formula) just that I don't remember it ..

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6. ahh im sooo depressed I went into this exam thinking yh im gonna smash it, but I messed it up completely after seeing TeeEm unofficial markscheme I only got 51 does anyone reckon this will at least be a B.
7. (Original post by aero-1997)
ahh im sooo depressed I went into this exam thinking yh im gonna smash it, but I messed it up completely after seeing TeeEm unofficial markscheme I only got 51 does anyone reckon this will at least be a B.
Yeah check out the thread "Will the real TeeEm.."; he just posted grade boundaries (that would be a B I think)
8. (Original post by BP_Tranquility)
But I ended up with 4 despite that? Unless I did do part a correctly (using the correct formula) just that I don't remember it ..

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You will have to sweat it out until the 13th of Aug

only 51 days to go!
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9. (Original post by TeeEm)
You will have to sweat it out until the 13th of Aug

only 51 days to go!
I know, I'll try and enjoy my life till then
But... it definitely won't work if I found e using the hyperbola formula?

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10. (Original post by BP_Tranquility)
I know, I'll try and enjoy my life till then
But... it definitely won't work if I found e using the hyperbola formula?

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maybe you did not ...
maybe you made a sign error further down in your workings and that would correct it from e2-1 to 1-e2
maybe you do not remember ...
maybe because I am a Londoner ...
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11. (Original post by TeeEm)
maybe you did not ...
maybe you made a sign error further down in your workings and that would correct it from e2-1 to 1-e2
maybe you do not remember ...
maybe because I am a Londoner ...
Ah, that raises more questions and theories than it answers :P

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12. (Original post by BP_Tranquility)
Ah, that raises more questions and theories than it answers :P

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hopefully you did well and your university entry is not affected by all this.
13. (Original post by aero-1997)
ahh im sooo depressed I went into this exam thinking yh im gonna smash it, but I messed it up completely after seeing TeeEm unofficial markscheme I only got 51 does anyone reckon this will at least be a B.
Should be, TeeEm also posted the following estimated grade boundaries:

100UMS ...65-70
90UMS..... 60-61
80UMS..... 53-54
70UMS..... 45-48
14. I got 43-45 what ums do you think that will be.
15. For question 1 for cosh^2x I used e(x) instead of e(2x) to find the solutions how many marks out of 6 would I loose.
16. Anyone else spend ages trying to calculate the surface area of revolution for 4b)...?
That question could've been on a C4 paper.
17. Got the eigenvalues as surds and i knew i did something wrong so i skipped the question 😭😭😭

I could have finished it if i knew i actually did it right
18. solutions to FP3 for those waking up late in posts 504/505

http://www.thestudentroom.co.uk/show....php?t=3327325
19. Maximum mark I got is about 68/75

Annoyed I didn't spot that OQR was a right angle, but to be fair it's hard to think when there's a seagull and its child squawking outside the window right next to you for the entire exam.
20. (Original post by Jubz1)
Got the eigenvalues as surds and i knew i did something wrong so i skipped the question 😭😭😭

I could have finished it if i knew i actually did it right
I kept inputting the eigenvalues back into the equation and it was coming out right and I was just starting at my original equation like "what's wrong with this?"
Ultimately probably only dropped a couple on the question but I ended up actually attempting to do it in about a three minute space near the end

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