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OCR FP2 (not mei) 22/06/15

Couldn't find a thread for FP2 so thought id start one.
(edited 8 years ago)

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Hey, I remember you from the S2 thread - hope it went well for you! :smile:

I quite like FP2, with the exception of series and integrals :angry:. How are you feeling about it?
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Original post by tbhlouise
Hey, I remember you from the S2 thread - hope it went well for you! :smile:

I quite like FP2, with the exception of series and integrals :angry:. How are you feeling about it?


It's alright yeah. Same as you really okay with everything apart from series and integrals...
I like everything apart from iteration which is just silly.
Just hoping I don't mess this exam up :tongue:
Original post by lllllllllll
Just hoping I don't mess this exam up :tongue:


Same here! FP3... :bricks:
Original post by tbhlouise
Same here! FP3... :bricks:


I think I flunked STEP II today, really lost my motivation for FP2 because of it :frown:
Original post by tbhlouise
Same here! FP3... :bricks:


Original post by lllllllllll
I think I flunked STEP II today, really lost my motivation for FP2 because of it :frown:


FP3 was meant to secure the A* for me, one more above 90 (M2 and M3 already above 90), after that FP2 needs to be like 100 or I am screwed.
Original post by Jai Sandhu
FP3 was meant to secure the A* for me, one more above 90 (M2 and M3 already above 90), after that FP2 needs to be like 100 or I am screwed.


lol had to post this again. No idea how high though
Original post by lllllllllll


lol had to post this again. No idea how high though


Your img isnt showing up QQ
Original post by Jai Sandhu
Your img isnt showing up QQ


It was the too damn high grade boundaries meme for M3 I showed last time :smile:

Really am concerned with M3 now...I'm more uncertain with M3 than D2
Original post by lllllllllll
It was the too damn high grade boundaries meme for M3 I showed last time :smile:

Really am concerned with M3 now...I'm more uncertain with M3 than D2


M2 and 3 boundaries are silly but I think I got 100 in M3 unless I made a silly mistake I didnt see and would have got 100 in M2 but I misread the mass of a particle so lets say like 70/72, I think I should already be ok but if I have mucked up in either then I am screwed so I need FP2 to be like 100%.
Original post by Jai Sandhu
M2 and 3 boundaries are silly but I think I got 100 in M3 unless I made a silly mistake I didnt see and would have got 100 in M2 but I misread the mass of a particle so lets say like 70/72, I think I should already be ok but if I have mucked up in either then I am screwed so I need FP2 to be like 100%.


Really cba to do FP2 lol. I feel bad for not practicing but the content becomes incredibly repetitive. Wondering how can I take shortcuts on this :colone:
Original post by lllllllllll
Really cba to do FP2 lol. I feel bad for not practicing but the content becomes incredibly repetitive. Wondering how can I take shortcuts on this :colone:


To be fair, FP2 is the most STEP like A level exam we do in terms of topics.
Hey guys, is this a valid way of expanding ln(x) using Taylors series?

ln(n)=ln(1+(n−1))=n−1−(n−1)22+(n−1)33−...+(−1)r+1(n−1)rr+...[br][br] ln(n) = ln(1+(n-1)) = n-1 - \dfrac{(n-1)^2}{2} + \dfrac{(n-1)^3}{3} - ... + (-1)^{r+1}\dfrac{(n-1)^r}{r} + ... [br][br]

Hang on a second.... :smile: I think I've just had an idea while writing this. I don't think you can because...

ln(x)⇒x≠0 ln(x) \Rightarrow x \neq 0

so I guess my statement above is incorrect :ashamed2:
(edited 8 years ago)
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Does anyone know how to do the last question of June 2014?
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Original post by Tomh97
Does anyone know how to do the last question of June 2014?


Could you post a link to the paper?
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Original post by ertuu
Could you post a link to the paper?


Cant find the paper online anywhere, computer isnt letting me upload a photo of the question either:frown:
Original post by Tomh97
Cant find the paper online anywhere, computer isnt letting me upload a photo of the question either:frown:


I assume you mean 9) (iv)??

Basically δn+1≈g′(α)δn \delta_{n+1} \approx g'(\alpha) \delta_n is just another iteration formula. So you can use iteration to find a value of n for δn<10−6δ1 \delta_n < 10^{-6} \delta_1
Original post by lllllllllll
Hey guys, is this a valid way of expanding ln(x) using Taylors series?

ln(n)=ln(1+(n−1))=n−1−(n−1)22+(n−1)33−...+(−1)r+1(n−1)rr+...[br][br] ln(n) = ln(1+(n-1)) = n-1 - \dfrac{(n-1)^2}{2} + \dfrac{(n-1)^3}{3} - ... + (-1)^{r+1}\dfrac{(n-1)^r}{r} + ... [br][br]

Hang on a second.... :smile: I think I've just had an idea while writing this. I don't think you can because...

ln(x)⇒x≠0 ln(x) \Rightarrow x \neq 0

so I guess my statement above is incorrect :ashamed2:

Don't worry, Taylor series isn't on the spec for FP2, though I would help if I could.

Is anyone here sitting S3? If memory serves, just over 300 people a year sit it.

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