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# WJEC Mathematics C4 14/06/12 Tweet

Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.

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1. Re: WJEC Mathematics C4 14/06/12
(Original post by katiesmith18)
I think it was a pretty easy paper, but that may mean that the UMS marks might be quite high.
Did people get the value of p (on the vectors q) to be 7?
And do the differential equation q, did you get t = 17.9?
yeaah i got those answers as well
2. Re: WJEC Mathematics C4 14/06/12
What did everyone get for question 7b? Think I misread that question.. and how many marks was it?
3. Re: WJEC Mathematics C4 14/06/12
What was everyone's answers to 3a? I think I made a mistake on that question
4. (Original post by gwenllian94)
What did everyone get for question 7b? Think I misread that question.. and how many marks was it?
I think I had 0.4201 but I'm not 100% sure.
It was worth 4 marks.

This was posted from The Student Room's Android App on my GT-S5360
5. Re: WJEC Mathematics C4 14/06/12
(Original post by The_boat)
What was everyone's answers to 3a? I think I made a mistake on that question
If i remember right, I think i got 210, 330, 48.6 and 131.4
6. Re: WJEC Mathematics C4 14/06/12
(Original post by Holby_fanatic)
I think I had 0.4201 but I'm not 100% sure.
It was worth 4 marks.

This was posted from The Student Room's Android App on my GT-S5360
7. Re: WJEC Mathematics C4 14/06/12
(Original post by gwenllian94)
If i remember right, I think i got 210, 330, 48.6 and 131.4
O good, I got those. Thought I'd messed up somewhere on that
8. Re: WJEC Mathematics C4 14/06/12
hey, hope everyones went okay!
I got p=8 instead of p=7 (dammit) and did a silly mistake in the substitution.
Other than that i think it was okay. Although only got two angles for the rsin question. I thought 4 was wrong :x, but im not sure
9. Re: WJEC Mathematics C4 14/06/12
what did people get for 1b?
10. Re: WJEC Mathematics C4 14/06/12
exam was ok, minus little stupid ends of questions.
for 6b i think u had 2 sub in 3 as x and 3 as y thats how i got the equation
then find a factor of the equation and do division
x=1 x=-2 x=3
the 3 one links with the parameter therefore
x = 1 and x = -2 and just sub in to find y.

couldn't do the cos2delta bit on question 3a as I'm rubbish with brackets however just guessed at them and carried on to get c.f.e

3b there were only 2 angles but had to make sure you minuses delta from it all
i.e there was a 40degree angle which ended up outside range, but a 400degree one that ended up well in the range.

question 1 and 2 were nice as normal, as well as 9 + 10.

stupid error made on end of double angle with largest angle as didn't substitute in the Rsin(x-a) into it. massive ache.

the differential equation was ok except the second part as different to most of the others, luckily able to do second part from data they gave you.

all in all ok paper, just need the marks.

Has anyone got the paper they can scan onto here so can look in regards to what marks i was likely to get? Ta
11. Re: WJEC Mathematics C4 14/06/12
(Original post by idigdn91)
what did people get for 1b?
I think I had 1/4? Can't really remember, that maybe have been a different question.

Was a good exam, but I couldn't do the substitution and dropped one or two marks where I couldn't quite get the last bit of a few questions, and I didn't have enough time to try question 10.
12. Re: WJEC Mathematics C4 14/06/12
(Original post by idigdn91)
what did people get for 1b?
13. Re: WJEC Mathematics C4 14/06/12
(Original post by rossdiamond)
Has anyone got the paper they can scan onto here so can look in regards to what marks i was likely to get? Ta
The paper is in my original post, I'll edit it to include the marks per question though
14. Re: WJEC Mathematics C4 14/06/12
(Original post by idigdn91)
what did people get for 1b?
1/4
15. Re: WJEC Mathematics C4 14/06/12
3b(ii) anyone?
16. Re: WJEC Mathematics C4 14/06/12
Typical that I got the values of the vectors wrong *facepalm*, I had p=-1, therefore I must have had either one or two of the other values wrong! Does anyone else simplify the vector equation of the line to something like (for example) i(4+lambda)+j(1-2lambda)+k(3+4lambda) or do they leave it as a+lambda(AB)?

I'm hoping they only take 2-3 marks off for getting the values wrong.. got damn +- signs!
17. Re: WJEC Mathematics C4 14/06/12
It was a fair paper. Quite similar to the past papers, not too easy but not too difficult either.

I made a bit of a mess (it was untidy) of 8b) on the "show" part, but other than that it went quite well.
18. Re: WJEC Mathematics C4 14/06/12
what did everyone get for volume of a revolution?
what did everyone get for volume of a revolution?
65.0005
Although knowing me it's probably wrong. -.-

This was posted from The Student Room's Android App on my GT-S5360
20. Re: WJEC Mathematics C4 14/06/12
This was my exam paper, with a few answers I scribbled down after I finished. It's not necessarily correct of course, and it doesn't show method. I don't want to discuss any questions, but feel free to use this as a reference.

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