Edexcel A2 C4 Mathematics June 2016 - Official Thread

i know this sounds stupid but ive got a mind blank on the easiest question
Can someone please differentiate 5/2t for my stupid ar*e

Thanks very much. Since 3 modules =300 ums, Ive got quite a lot of UMS to play with before I drop down to a B

-5/(2t^2)

i s2g i'll probably mess up like this on the exam as well cause im such a ditz

it tells you that x<8/9.

So you can take out 1000 from under the cube root sign leaving you with
10 cube root 7.1

Then 7.1= 8-9x
Solve for x=0.1
Sub 0.1 into your previous expansion and times by 10

In summary you need your x to be small, so you make that possible using the method above. P.S the mark scheme for this question has an error

sin5xcosx or sin⁵xcosx?

It's just natural night-before-the-exam panic getting to you In tomorrow's exam you'll probably forget about the occasion a couple of questions in and be working fine!

Exactly, fingers crossed you should be fine.

THANKS and finally (I promise....) to get an A*, do you need an A* in each of C3 and C4 separately, or is it an Average of A* across both C3 C4? I think I remember my teacher saying you need an A* separately in both units?

I dont suppose you could show me your working at all?

180 UMS or more combined from C3 and C4. Could be 90/90, 89/91, 100/80 etc.

180 UMS or more combined from C3 and C4. Could be 90/90, 89/91, 100/80 etc.

Any predictions on what could potentially come up tomorrow?

Questions from the international paper were really simmilar for c3.
I'd suggest looking at them for c4 too.
They are no's: 2, 3, 5, 7, 11, 12, 13.

my maths teacher told me that you have to get 90 ums in both c3 and c4 to get an a* (along with 480 ums total)

Which international paper?

The 2016 one.
Attached below. (hopefully)