You are Here: Home >< Maths

# C4 Edexcel Full Worked Solutions 2016

Announcements Posted on
Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. I couldn't update the old forum.

Trapezium rule answer should be 1.083

I forgot the +c on 7a) like an absolute noob.
Attached Images
2. core42016.pdf (230.5 KB, 944 views)
3. How many marks was each question
4. For question 6b, when integrating -cos2theta, should it not equal -1/2sin(2theta), instead of -1/2sin(theta)
5. (Original post by sharjeel743)
For question 6b, when integrating -cos2theta, should it not equal -1/2sin(2theta), instead of -1/2sin(theta)
I agree that it should be, although it doesn't actually change the answer.
6. Trapezium rule 0 is y1 so 2(y2+y3...)

If you look at how far your estimate is from the real answer you'll see you did the trapezium rule wrong. Apart from that great work, really appreciate people like you.
7. Hey for the differential equation question I showed one method for part a and b and then 5 mins before the exam finished I went back and worked it out correctly under the other working out but forgot to cross out the incorrect method.Will I still get the marks?
8. (Original post by sharjeel743)
For question 6b, when integrating -cos2theta, should it not equal -1/2sin(2theta), instead of -1/2sin(theta)
Just a typo, woops
9. Hi everyone, just wanted to ask if i can have this split C1234 D1 S2 FP12 S3 S1 M1 M2
10. (Original post by mehtj006)
Trapezium rule 0 is y1 so 2(y2+y3...)

If you look at how far your estimate is from the real answer you'll see you did the trapezium rule wrong. Apart from that great work, really appreciate people like you.
The Trapezium rule is done correctly.
11. (Original post by MathsAndChess)
The Trapezium rule is done correctly.
trust me man it's not 1.803
12. (Original post by mehtj006)
trust me man it's not 1.803
Show me your solution, because it is.
13. (Original post by MathsAndChess)
Show me your solution, because it is.
The real area comes to 1.07, how the hell can the trapezium rule bring 1.803.

W/2(y1+2(y2+y3....)+y4)
14. (Original post by mehtj006)
The real area comes to 1.07, how the hell can the trapezium rule bring 1.803.

W/2(y1+2(y2+y3....)+y4)
Trapezium rule is very innacurate over this few strips.
15. (Original post by Tan455)
Hey for the differential equation question I showed one method for part a and b and then 5 mins before the exam finished I went back and worked it out correctly under the other working out but forgot to cross out the incorrect method.Will I still get the marks?
Depends on the marker, Probably not though
16. (Original post by MathsAndChess)
Depends on the marker, Probably not though
So I won't get the marks?
17. Why dont you type them all in LaTeX?

That's would be much easier...
18. (Original post by casperyc)
Why dont you type them all in LaTeX?

That's would be much easier...
Probably. I only know the math functions though.
19. (Original post by mehtj006)
Trapezium rule 0 is y1 so 2(y2+y3...)

If you look at how far your estimate is from the real answer you'll see you did the trapezium rule wrong. Apart from that great work, really appreciate people like you.
Trapezium rule is (0.5)(0.2)(y1+yn+2(y2+y3+yn-1))
so you might be wrong I am sorry
but he is wrong as well
20. (Original post by MathsAndChess)
Show me your solution, because it is.
Man, why are you so confident about your answers, you got all the y values right, recalculate it and you will find it is not 1.803 but 1.083 (3 d.p.)
21. (Original post by JasPuddy)
Man, why are you so confident about your answers, you got all the y values right, recalculate it and you will find it is not 1.803 but 1.083 (3 d.p.)

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 26, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

Poll
Useful resources