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# OCR Core 2 Maths: Wednesday 25th May 2016 watch

1. What was 1ii again? I got 10 but what did you need to do for 1ii? I have completely forgotten the exam.
3. It was to find the lenght of bc which was 5. Something
4. (Original post by bluegirl64)
Last years was 57/72, and that one was easier, so my predictions would be that this would be 56-60 this year. Nothing too high, nothing too low. Hopefully however C1 is lower than normal.
5. (Original post by JoshH2016)
For Q9, I got:

A=5/3 and k=root3/2
This is what I think I got for this too
6. (Original post by jacklfc99)
unofficial mark scheme?
http://www.thestudentroom.co.uk/show....php?t=4118305
7. How did you work out the answer to 9ii and 9iii?
8. (Original post by Stephen65golf;[url="tel:67533450")
67533450[/url]]How did you work out the answer to 9ii and 9iii?
Hey Stephen, if you remind me of the question I can take a look at it for you
9. (Original post by Carter1)
Hey Stephen, if you remind me of the question I can take a look at it for you
9ii given that x=1/5 pi and x= 2/5 pi are the 2 smallest +ve solutions of sin (ax)=k where k is a +ve constant, find the values a and k.

9iii given instead that sin (ax) = root 3 cos (ax). Find the 2 smallest +ve solutions for x giving your answers in an exact form in terms of a.

Stephen
10. Could anyone go through question 9)ii and 9)iii please? Could you show the working for each question? Thanks

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