Hey there! Sign in to join this conversationNew here? Join for free
 You are Here: Home >< Maths

# AQA A2 Mathematics MPC3 Core 3 - Wednesday 15th June 2016 [Official Thread] watch

1. What about the -88 one for 9b, why do ou reject it

Posted from TSR Mobile
2. (Original post by KB_97)
Core 1 was apparantly really hard (fun now about core 2). Core 3 was terrible. Lord help up for core 4. My only hope is getting 100 ums in stats2 to pull up my grade to an A.

I was aiming for a* yesterday and now I'm trying to maintain my A. That's how bad that paper was for me
Same
3. Can we all try and remember what the questions were in what order so I can try and go through and see if I actually got any marks whatsoever?
4. fkin found it, its on here if anyone needs it u skets xxxxxxxxxxxxxxxxxxxxxxxxxxxxx http://freeexampapers.com/exam-paper...MPC4-W-SQP.pdf
5. (Original post by MahuduElec)
What about the -88 one for 9b, why do ou reject it

Posted from TSR Mobile
If you put it back into sec(2x-70)-tan(2x-70) it doesn't give you -5, so -21.3 is the only right answer
6. Probably got a u, goodbye university
7. (Original post by MahuduElec)
What about the -88 one for 9b, why do ou reject it

Posted from TSR Mobile
It results in a negative tan, which doesn't fit the first two equations
8. (Original post by jtebbbs)
If you put it back into sec(2x-70)-tan(2x-70) it doesn't give you -5, so -21.3 is the only right answer
That's really 'cheeky' of them if true, but I swear it said 'solutions'
9. (Original post by jtebbbs)
If you put it back into sec(2x-70)-tan(2x-70) it doesn't give you -5, so -21.3 is the only right answer
Just checked it on my calc, yh u get - 0.2 when you sub in - 88,fs, that's another mark gone, 64-68 is its.

I dont see why it's obvious to reject the - 88, is there a way to spot that other than subbing it in?
10. What do you think the grade boundary for an A will be?
11. (Original post by tanyapotter)
What do you think the grade boundary for an A will be?
56?
12. (Original post by MahuduElec)
Just checked it on my calc, yh u get - 0.2 when you sub in - 88,fs, that's another mark gone, 64-68 is its.

I dont see why it's obvious to reject the - 88, is there a way to spot that other than subbing it in?
Oh **** really
Well then lol
13. https://www.change.org/p/aqa-lower-g...aries-for-mpc3
Please sign this
14. (Original post by C0balt)
Oh **** really
Well then lol
Yh i was certain it said solutions, so I assumed it would have two solutions for 3 marks. What a **** question on the whole.

Posted from TSR Mobile
15. (Original post by ValerieKR)
It results in a negative tan, which doesn't fit the first two equations
Why doesn't a negative tan fit? Sounds right, just wondering why it's right?
16. (Original post by jtebbbs)
Why doesn't a negative tan fit? Sounds right, just wondering why it's right?
We have secx + tanx and a secx-tanx subtracting second from first gives 2tanx= 4.8, 4.8>0
Also notice that when you sub the -88.something in you get -0.2 which is the one that isn't the one you want (one with the opposite tan sign) (sum rather than difference or vice versa)
(details of which is which are lost on me)
17. (Original post by MahuduElec)
Yh i was certain it said solutions, so I assumed it would have two solutions for 3 marks. What a **** question on the whole.

Posted from TSR Mobile
I didn't doubt whether it satisfied the equations because it was trig question... Like trig questions always have multiple solutions
And I agree it said solutions in plural lol
18. Could've calculated the rate of change of my grade expectations during the duration of the paper and probably got more marks than I actually did attempting questions
19. i can shake it like it's hot sauce
fast cars leaves the cops lost
20. (Original post by C0balt)
I didn't doubt whether it satisfied the equations because it was trig question... Like trig questions always have multiple solutions
And I agree it said solutions in plural lol
I hope they allow them both in the mark scheme
Have they ever done anything similar?

Reply
Submit reply
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: June 1, 2017
Today on TSR

### The most controversial member on TSR?

Who do you think it is...

### Uni strikes! How do they affect you?

Discussions on TSR

• Latest
Poll
Useful resources

## Make your revision easier

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

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

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.