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# Edexcel A2 C4 Mathematics June 2015 - Official Thread watch

1. (Original post by amberpop)
I got that as well but apparently some people used sin of 31.82 to work it out
Think you need to use sin rule?
2. (Original post by ThatGuyRik)
Was to 2dp so 38.82 or something.
what queston is that for?
3. (Original post by jf1994)
Did anyone else use the sine rule for the shortest length vector question?
Yeaa! But a lot of people got 60 degrees and also 31.8 degrees so answers are going to vary..
4. (Original post by C++)
I believe calculus requires radians, however, it is possible that the mark scheme accepts use of degrees. I, particularly, believe it will.
Even though you get a completely different answer (27 as opposed to 0.4)?

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5. (Original post by dandroff)
what queston is that for?
angle?
6. (Original post by Wahid1)
Not so arrogant now are you?

Wanna make some 77 for A predictions again you coon

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I was never arrogant you tool.
7. (Original post by toddmcnugget)
For the population one I originally did it in degrees but at the bottom of the page (in smaller yet legible writing) I wrote it out again in radians - will I drop marks? Every mark counts at this point...
If the person marking can see the correct working & answer you won't lose marks since they mark all attempts and the highest scoring one gets the marks.
8. guys I got 4pi/ln3 on the last question, where did i go wrong??
9. (Original post by anorris13)
I can't see why it would allow degrees, it is completely wrong
Upon second thought, you're right. My logic was that, because it was not directly stated, it would be acceptable. There is no reason why that would be true; I answered without thinking.
10. (Original post by ThatGuyRik)
angle?
whats the answer? i think i got lik 27 something? cant remember really
11. has arsey posted yet?
12. (Original post by 007w20)
I feel the same, I may get 100UMS in C3 and get less than 80UMS in C4
I agree too :/
13. Think I got 60/75. High B or a low A?
15. (Original post by Medicjug)
I think Im on the riskier cusp of the A*

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Me too, feel I may have lost a few too many marks in C4 -_-
16. (Original post by bfp=big fat poo)
guys i got 4pi/ln3 on the last question, where did i go wrong??
I lost a friend...
17. (Original post by ThatGuyRik)
Was to 2dp so 38.82 or something.
Got 31.82 i thinks thats right 😞
18. (Original post by dandroff)
whats the answer? i think i got lik 27 something? cant remember really
i don't want to mislead but im pretty sure it was in the thirties.
19. (Original post by s.c.a1)
samee dont quite remmeber my answer though what did you get for AB
10root2?

But I guess I used the wrong triangle... In fact, it should have been sin instead of tan... Fml
20. (Original post by Razzamataz179)
dont you get to stay at school if you have like 6+ hours of exams?
Yep, I had to stay at school. They couldn't have let me go, it's against exam rules.

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