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OCR C2 exam Wed 25th May

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Original post by hunihuni
predicted grade boundaries?


I reckon the difficulty was similar to last year's paper which was 64/72 for an A
Anyone else get last question x =1/3a pi and x = 4/3a pi ? Thought it seemed too simple for four marks
Reply 22
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?
Reply 23
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
Reply 24
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
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
(edited 7 years ago)
Reply 26
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.
Reply 27
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?
That was piss liark.
Reply 29
What was the stretch?
Reply 30
Original post by hakig
What was the stretch?


Scale factor 1/9 parallel to y axis

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Stretch of scale factor 1/3
What was the radius ?
Reply 33
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
Reply 34
What did people get for N with the arithmetic and geometric series?

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Reply 35
Original post by _Orion_
Scale factor 1/9 parallel to y axis

Posted from TSR Mobile


translation 2 units in x axis before?
Reply 36
Original post by Messeditallup
What was the radius ?


20.4 I think
Reply 37
Original post by Messeditallup
What was the radius ?



20.3
Reply 38
Original post by Jitesh
translation 2 units in x axis before?


Yeah, in positive direction

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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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