A-level Edexcel Maths C2 Paper (6664) May 22nd 2019 Unofficial Markscheme

That seems kind of small I got something different, what did you do for that?

Found the area of the segments of the circles and added them together

^^ check the first post, or if you want to make a new thread to make it easier?

What did you get for p when dy/dx = 0
I got a roof cant remeber exactly and valie of p was 1. Something.

Thats amazing! its all good there, hope you did okay today

What did people do for the logs question where it was logx600=3,
For part 2 I was lost
You had to write it in the form 3^k where k was a rational number but i couldnt express it as a rational number

the x value that i got when I dy/dx=0 was a weird surd fraction?

What did you get for p when dy/dx = 0
I got a roof cant remeber exactly and valie of p was 1. Something.

Q1.
9.183 I think
1.96

Q2.
53
Forgot

Q3
B)Square root 3 /6
C)15 Square root 3/2

Q4
16 years I think
£5346071

Q5
(3/2,-3)
7/2
Y=-3
???

Q6 integration
228

Q7 can't remember it
-69.1
-20.9
15
75
8.43
K=7/5

Q8 weird. I'm not sure about these answers
0.283
0.709
B) perimeter 8.2
C) misread the question

10)
7.16

what do you lot reckon the grade boundaries are going to be like?

Guy you know the question with something like sin(2y) did you find 2y and then divide it by 2 to give y???

Yes, trapezium was about 500ish and intergral -4 to 8 of the curve gave 200ish and you subtracted them

Let sin2y = X, solve quadratic, just to get 2 X's= some fraction, did the sin thing and lastly divide by 2, there were only like 5 solutions

The p value when 7.something

Let sin2y = X, solve quadratic, just to get 2 X's= some fraction, did the sin thing and lastly divide by 2, there were only like 5 solutions

Wasn't question 6: 504 - 96 = 408 and question 7: -65.9, -20.9, 15 and 75