FP3 UK June 2016 Model Solutions with paper

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kprime2
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Edexcel uk paper. I thought this was really easy bar 7(a). However this was only worth 3 marks so it's not too bad.
I wouldn't worry about 4(i) much. By not use a calculator, they mean you can't simply evaluate the answer using a calculator that has a facility for numerical integration. As long as you showed some working and got an answer you'll be fine.

67 for an A I reckon
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kprime2
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does anyone know a nice way to do 7a? I feel I've done too much for a 3 marker
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lawlieto
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(Original post by kprime2)
does anyone know a nice way to do 7a? I feel I've done too much for a 3 marker
If you write " In - In-2 " in terms of the integrals at the beginning, and you use the trig formulae on page 6 from the pink formulae booklet, the work will be significantly shorter
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Ayman!
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(Original post by lawlieto)
If you write " In - In-2 " in terms of the integrals at the beginning, and you use the trig formulae on page 6 from the pink formulae booklet, the work will be significantly shorter
But it says "prove that" rather than show that. Would they accept that method?

The mark distribution in that entire question is ridiculous.
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lawlieto
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(Original post by Ayman!)
But it says "prove that" rather than show that. Would they accept that method?

The mark distribution in that entire question is ridiculous.
For 3 marks I'm almost sure they'd accept that.
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Mr.cool
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Well 7(a) is in the official Pearson FP3 text book on three separate pages *[pg77 q9] [pg78 q16] [pg100 q59]*
I never sat the exam but it does look easy.
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kprime2
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(Original post by Mr.cool)
Well 7(a) is in the official Pearson FP3 text book on three separate pages *[pg77 q9] [pg78 q16] [pg100 q59]*
I never sat the exam but it does look easy.
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What method did they use?
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kprime2
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(Original post by lawlieto)
If you write " In - In-2 " in terms of the integrals at the beginning, and you use the trig formulae on page 6 from the pink formulae booklet, the work will be significantly shorter
interesting
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lawlieto
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(Original post by kprime2)
interesting
it took me 3 lines in the exam so i guess each line is 1 mark haha...
(i was extremely tired in my fp3 exam and i had to start this question for the third time to realise what i was doing....)
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Mr.cool
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(Original post by kprime2)
What method did they use?
* Attachment 558743558745

Was worded differently in fp3 2016.
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kprime2
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(Original post by Mr.cool)
* Attachment 558743558745

Was worded differently in fp3 2016.
Ah I see. Yeah makes sense to assume I subcript n-2 since it was only a 3 marker
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kprime2
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(Original post by Mr.cool)
* Attachment 558743558745

Was worded differently in fp3 2016.
Lots would have messed this question up I think. Only very few who did the mixed exercises would have known how to do this.
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Mr.cool
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(Original post by kprime2)
Lots would have messed this question up I think. Only very few who did the mixed exercises would have known how to do this.
Edexcel always do this.
On the 2015 UK FP3 two of the hardest questions 7(b) [ is on page 75 example 22 ] and 8(b) [is adapted on example 16 page 37 and was asked in 2004 june p5]
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IronicalMan
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Out of curiosity, how many of you are at state schools? I've yet to hear of one that does fp3 which tbf, I would have found easier and more enjoyable than s2 or m2
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kprime2
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(Original post by IronicalMan)
Out of curiosity, how many of you are at state schools? I've yet to hear of one that does fp3 which tbf, I would have found easier and more enjoyable than s2 or m2
I went to a state school and my school didn't offer fp3
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ninjass
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75/75 - my A* in Further maths should be comfortable!!!
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username1162972
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(Original post by Ayman!)
But it says "prove that" rather than show that. Would they accept that method?

The mark distribution in that entire question is ridiculous.
It is fine going LHS to RHS.
By saying
Consider, I_n-I_n-2 etc....=integral 2cos etc etc.
I don't see why people would struggle with this question though, seems extremely easy for a reduction. Other parts of the paper look harder.


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ninjass
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(Original post by physicsmaths)
It is fine going LHS to RHS.
By saying
Consider, I_n-I_n-2 etc....=integral 2cos etc etc.
I don't see why people would struggle with this question though, seems extremely easy for a reduction. Other parts of the paper look harder.


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7a was very easy, I just treated it like a normal show that and went from LHS to RHS.
Do you think 7b would cause problems?
I did it a bit differently to Kprime
Worked out l5-l3
then worked out l3-l1
Added them to get l5-l1
And then you work out l1 and add it to get l5
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username1162972
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(Original post by ninjass)
7a was very easy, I just treated it like a normal show that and went from LHS to RHS.
Do you think 7b would cause problems?
I did it a bit differently to Kprime
Worked out l5-l3
then worked out l3-l1
Added them to get l5-l1
And then you work out l1 and add it to get l5
Yep that is the way I would go aswell. No I don't think it would cause any problems tbh even if done ib tbe normal(straight) way.
Really straight forward paper which is worrying, I had high hopes of FP3 maintaining a good standard of some decent maths.


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ninjass
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(Original post by physicsmaths)
Yep that is the way I would go aswell. No I don't think it would cause any problems tbh even if done ib tbe normal(straight) way.
Really straight forward paper which is worrying, I had high hopes of FP3 maintaining a good standard of some decent maths.


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Definitely I would not be surpirsed if it was above 70* for an A*, it was so so easy. The hyperbolic question (5coshx - 4 sinhx) was exact same to june 2012 as well. Edexcel have been weird this year, M2 and FP2 were very tricky whereas c3, c4, s3, and fp3 was very easy!! I would expect very high bounderies for c3, c4, s3 and fp3 now
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