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OCR C2 exam Wed 25th May

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1. (Original post by hunihuni)
I reckon the difficulty was similar to last year's paper which was 64/72 for an A
2. Anyone else get last question x =1/3a pi and x = 4/3a pi ? Thought it seemed too simple for four marks
3. (Original post by Christie_xx)
Same to both if you mean k=91
+/- root 3 for the value of k for the coefficient one too?
4. (Original post by chemdude112)
Anyone else get last question x =1/3a pi and x = 4/3a pi ? Thought it seemed too simple for four marks
Yeah I think I got that, it was easier than the 3 makrer before IMO
5. (Original post by Christie_xx)
I reckon the difficulty was similar to last year's paper which was 64/72 for an A
The last question might have been a tad easier than last year's but I would agree about 64 ort 65 /72
6. No, A is 3/5 as the 5/3AX gives values

i.e Sine(5/3X36) = Sine(60)

So your A is 5/3 for application however the scale factor is 3/5

A=3/5 whcih when applied goes to 5/3
K- root3/2
7. (Original post by Jitesh)
The last question might have been a tad easier than last year's but I would agree about 64 ort 65 /72
What? You're confusing the C1 grade boundaries and C2. Last year was 57 for an A.
8. (Original post by Jitesh)
The last question might have been a tad easier than last year's but I would agree about 64 ort 65 /72
57 was an A last year though?
9. That was piss liark.
10. What was the stretch?
11. (Original post by hakig)
What was the stretch?
Scale factor 1/9 parallel to y axis

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12. Stretch of scale factor 1/3
13. What was the radius ?
14. (Original post by AlfieH)
What? You're confusing the C1 grade boundaries and C2. Last year was 57 for an A.
Oh. Sorry, maybe 58 or so then
15. What did people get for N with the arithmetic and geometric series?

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16. (Original post by _Orion_)
Scale factor 1/9 parallel to y axis

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translation 2 units in x axis before?
17. (Original post by Messeditallup)
20.4 I think
18. (Original post by Messeditallup)

20.3
19. (Original post by Jitesh)
translation 2 units in x axis before?
Yeah, in positive direction

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20. (Original post by gsdfghgfhfg)
No, A is 3/5 as the 5/3AX gives values

i.e Sine(5/3X36) = Sine(60)

So your A is 5/3 for application however the scale factor is 3/5

A=3/5 whcih when applied goes to 5/3
K- root3/2
Ahh I thought I'd got this one wrong 😭

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Updated: May 25, 2016
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