Edexcel A2 C4 Mathematics June 2015 - Official Thread

I think you just answered your own question, unless you meant 30/75

There was a formula at the bottom of the page. Ended up being 27pi/ln3 I think

Well, I suppose, but in the case of the question it would've been radians.

I have a few questions:



1) how many marks do I lose if I found K as 2 and continued so I got the area as half? Out of the total 8 marks of the question.



2) For the differential equation I found c correctly but at the end I couldn't get the final answer they wanted even doe part A was right. How many marks would I lose out of the 7?



3) for the years question how many marks do I lose if I did the question in degrees?



4) for the vector question how many marks do I get (if any) if I found the position vector of B for the shortest distance?



5) for the cone question, do you get one mark for writing V=pi integral of y2? Also due to a lack of time I went to write what I would do instead of doing it, but I wrote the radius will be 9 for the cone et and you do integral until 2 minus the volume of cone from Q to P?









Posted from TSR Mobile


Posted from TSR Mobile

Thinks he's hard.

Guys :
100ums in C1, C2,
97 in S1
approx 85 in c3
40 in c4

Is an A possible

Please tell me radius had to be worked out by working the hypotenuse and halving it and then squaring it to get r^2 (r^2 was something like 85/root2? or no)

Please tell me radius had to be worked out by working the hypotenuse and halving it and then squaring it to get r^2 (r^2 was something like 85/root2? or no)

what was the volume of the cone!?

too late now ... all recognition can be done by substitution
make sure you can substitute

Guys is 480 UMS for an A* for an A? I checked the June 14 grade boundaries and it says 480 under the A bit?

Has arsey uploaded yet? Also is arsey'is name actually arsey? And who is Arsey?

Guys :
100ums in C1, C2,
97 in S1
approx 85 in c3
40 in c4

Is an A possible