c4 solomon paper A markscheme

ynvme

hey can anyone please send me an edexcel c4 solomon paper A markscheme cannot seem to open it on any website

Reply 1

Kolya

I have no mark scheme but I have my solutions if they are any use to you.

Reply 2

mizfissy815

here you go...

C4-PaperA MS.pdf171.7KB

Reply 3

ynvme

thank you it has the mark sheme on the side i usually lose marks easily in mock exams so wanted to make sure

Reply 4

MorningElegance

Thank you!!! For a minute I thought I'd done a whole paper for nothing...
And also, I think there's an error in the markscheme. Question 5.a), their value for y when x=2 is wrong - they've done 4*2*e^(-2), when they should have done 4*2^(0.5)*e^(-2).

Reply 5

Failure54

Hey :-) Is there any chance someone could elaborate on the answer to question 6a I'm soooo confused by it. Thank you :-)

Reply 6

icedragon

http://www.freewebs.com/fisfos815/maths.htm

There you go, the whole set :smile:

Reply 7

mir3a

Original post by Failure54

Hey :-) Is there any chance someone could elaborate on the answer to question 6a I'm soooo confused by it. Thank you :-)

You must manipulate and use the double angle formulas, given in C3 for this.

Reply 8

lemonpopsicle

Original post by mir3a

You must manipulate and use the double angle formulas, given in C3 for this.

do you possibly have a worked solution to 6a as am struggling so much!

Reply 9

GodiffL

Original post by lemonpopsicle

do you possibly have a worked solution to 6a as am struggling so much!

6a: integrate 2Sin3x.Sin2x ( I'll use { for intergate sign)

= 2 { Sin3x.Sin2x

= We know SinA.SinB = 1/2 Cos(a-b). Cosa+b) --- C3 rule

so 2*1/2 { Cos(3x-2x) - Cos(2x+3x)

- { Cosx - Cos5x

= Sinx - 1/5 Sin5x = C

:smile:

Reply 10

lemonpopsicle