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# OCR (not MEI) Core 3 - 19/01/2011 Watch

1. (Original post by Stirlo)
Don't remember my answer, I know I got a=9, so that may help you :P If you remember the rest

For the tan questions i got something like 221/1768 or something like that :/
NINE?

Lmao, I had a feeling the 3/4th root of [(13) - 4]/2 was wrong
2. That was the hardest exam I've ever done in 17 years of existing.
3. (Original post by gildartz)
for the tan question, did anyone get 15/16?
I got that within the question but not as the final answer.

That question was just odd though
4. (Original post by Stirlo)
I definitely didnt get that denominator, got the numerator though. Ah well I probably messed up a calculation near to the end. Got the 12pi ln(25) though
With That Tan Question You Can Just Substitute A Value In And It Comes To 225/322 So Pretty Sure Thats Right
5. (Original post by Stirlo)
I definitely didnt get that denominator, got the numerator though. Ah well I probably messed up a calculation near to the end. Got the 12pi ln(25) though
same i got 225 over something like 386
6. Not being funny but I thought that this C3 paper was as hard as a further maths one.

If the grade boundary for an A is like 45, the world will be a much happier place
7. (Original post by Emma987)
same i got 225 over something like 386
Same, 225 over some other 3-digit number. Some people at my school got 1/2 though.
8. (Original post by Glen_Nichols)
100% sure it said to 2 sig fig. xxxx
damn..

I think I got 161/240 for the tan question
coz tan? was 1/4

probably wrong
9. Went kind of dreadful towards the end, I just started doing everything I knew to try and scrape a few marks.

Made a stupid error on the quotient rule question; copied the equation down wrong (changed a positive into a negative) which ****ed things up a bit, will hopfeully get method marks.

However I loved the 9 mark solids of revolution one, did anyone else get a=9 and the final answer as something like (or equivalent, could have simplified it more)
10. Hi chris
11. (Original post by Munchy5793)
With That Tan Question You Can Just Substitute A Value In And It Comes To 225/322 So Pretty Sure Thats Right

Edit: Plus I did a lot more working out than that. O_O
12. (Original post by Sundarii)
damn..

I think I got 161/240 for the tan question
coz tan? was 1/4

probably wrong
The tan question was horrific, I got something like 75/128. Meh.
13. (Original post by Munchy5793)
With That Tan Question You Can Just Substitute A Value In And It Comes To 225/322 So Pretty Sure Thats Right
Really? sigh . I made the tan4O into tan(2o+2O) expanded it then stuck the 1/4 into the values of tanO... I did think I was doing a ridiculous amount of working for 6 marks.

Note: O is phi
14. (Original post by Munchy5793)
With That Tan Question You Can Just Substitute A Value In And It Comes To 225/322 So Pretty Sure Thats Right
For 6 marks?
15. (Original post by JackWoot)
However I loved the 9 mark solids of revolution one, did anyone else get a=9 and the final answer as something like (or equivalent, could have simplified it more)

a=9? I thought that 6root6-2/3 was a bit odd...

Ahhwelll, Resit here I come!
16. (Original post by JackWoot)
Same here, I would be very surprised if the marker can work out all my scribbles for that question.
17. (Original post by JackWoot)
Went kind of dreadful towards the end, I just started doing everything I knew to try and scrape a few marks.

Made a stupid error on the quotient rule question; copied the equation down wrong (changed a positive into a negative) which ****ed things up a bit, will hopfeully get method marks.

However I loved the 9 mark solids of revolution one, did anyone else get a=9 and the final answer as something like (or equivalent, could have simplified it more)
Just about everyone in my school got the right answer for that question. Yeah you're right ;-).
18. (Original post by Glen_Nichols)
For 6 marks?

Then Go Crazy With Expanding Brackets And Subsitution To Get To That Answer
19. (Original post by nikita_atikin)
Would someone like to verify my answers?

Volumes of revolution 12pi[ln25]

Weird tan question 225/322 (don't even ask)

Last question, range of g(x) &gt; 2(k^0.5)

Simpsons rule 20.3

And can someone tell me the answers to the 1st modulus questions. I think I got it wrong along with pretty much the rest of the paper.
i got the same as you for them all apart from the range question, because i can't remember my answer for it :s
20. Hi Ravi and Will

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