You are Here: Home >< Maths

AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion & unofficial markscheme] watch

1. (Original post by Jimmy20002012)
Struggling with part cii, I have found vector BP, and used distance formula, and on gained a quadratic in mu, and found mu to 5/3 and 1/3 but not sure why you have to do vector of PB to get correct answer I though it did not matter which way round it was. ???

Attachment 399599

Posted from TSR Mobile
It doesn't matter whether you've found or because .

The mark scheme says that:

or

Is this what you've got? Or did you end up with

And

?

Posted from TSR Mobile

Posted from TSR Mobile
3. (Original post by Ruxy)

Posted from TSR Mobile
Haha! How are you finding Maths revision?

Posted from TSR Mobile
4. (Original post by CD223)
It doesn't matter whether you've found or because .

The mark scheme says that:

or

Is this what you've got? Or did you end up with

And

?

Posted from TSR Mobile

Posted from TSR Mobile
5. (Original post by Jimmy20002012)

Posted from TSR Mobile

Posted from TSR Mobile
6. (Original post by CD223)

Posted from TSR Mobile
Hahahaha now I look like an idiot.

Posted from TSR Mobile
7. (Original post by Jimmy20002012)
Hahahaha now I look like an idiot.

Posted from TSR Mobile
Not at all! Easy mistake to make!

Posted from TSR Mobile
8. Can somebody help me on 8c & d. I have +15 where the book says +20 in 8c and in 8d I'm stuck.

Posted from TSR Mobile
Attached Images

9. (Original post by the_googly)
Can somebody help me on 8c & d. I have +15 where the book says +20 in 8c and in 8d I'm stuck.

Posted from TSR Mobile
Is this correct?

Posted from TSR Mobile
10. (Original post by CD223)
Is this correct?

Posted from TSR Mobile
part d is incorrect
Attached Images

11. (Original post by the_googly)
part d is incorrect
Ah sorry of course yes.

The tangent at B is meant to read:

This gives:

Posted from TSR Mobile
12. (Original post by jjsnyder)
Can you tell me what your teacher says when you ask him?
He says the factor formulae are required for other boards but not AQA.

Posted from TSR Mobile
13. (Original post by CD223)
He says the factor formulae are required for other boards but not AQA.

Posted from TSR Mobile
Lol! Why's it in the CGP book then?
14. (Original post by lionelmessi19)
Lol! Why's it in the CGP book then?
In all honesty I'm not sure. If it's not in the specification it's not required.

Posted from TSR Mobile
15. (Original post by CD223)
In all honesty I'm not sure. If it's not in the specification it's not required.

Posted from TSR Mobile
Yeah, you're right! I had a look and its not in there.. Not quite sure why cgp have put it in the revision guide! I haven't seen it in class either
16. (Original post by lionelmessi19)
Yeah, you're right! I had a look and its not in there.. Not quite sure why cgp have put it in the revision guide! I haven't seen it in class either
The specification seems to have every possible sub topic within a chapter

Posted from TSR Mobile
17. (Original post by CD223)
The specification seems to have every possible sub topic within a chapter

Posted from TSR Mobile
Yeah, apart from that weird trig one. Would be so peak if that came up!
18. (Original post by lionelmessi19)
Yeah, apart from that weird trig one. Would be so peak if that came up!
If it came up they'd have to guide us through it. Plus there'd be 1000s of complaints to the board haha.

Posted from TSR Mobile
19. (Original post by CD223)
If it came up they'd have to guide us through it. Plus there'd be 1000s of complaints to the board haha.

Posted from TSR Mobile
Well the guidance better be good then! Could cost my grade lol!!
But there will still be people like you who will get it right! I know hahaha
20. (Original post by lionelmessi19)
Well the guidance better be good then! Could cost my grade lol!!
But there will still be people like you who will get it right! I know hahaha
It's nice you have so much faith in me - but I won't get it right

Ordered a graphical calculator today just in case lol.

Posted from TSR Mobile

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:
Updated: April 3, 2016
Today on TSR

Congratulations to Harry and Meghan!

But did you bother to watch?

What do you actually do at University?

Poll
Useful resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE