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AQA A2 Mathematics Pure Core 4 MPC4 - 17th June 2016

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Original post by KittyKat97x
I got the same:laugh:


This is correct fo sure
Original post by C0balt
I should think so. I'm not too sure whether you'd get 7/7 or lose a mark for the second part however, I haven't studied maths mark scheme as much as with science subjects lol

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You will lose out a mark on final answer A1 so 6/7
Original post by gcsekid
2 marks max or given its correct in radians maybe 1
Marks were for
Identity
Two brackets
Cos= -1/6 and 1
Two marks for correct solutions
Radians loses one


In all serius maybe lose A1,A2 for the answer been wrong unless it falls into special case aqa should just use graidians all the time
Original post by Salty carpet
I'm so confused😅 Do you remember the coordinates of A and B and then the line equation? I'm gonna attempt it but vectors are evil so I'll probably mess up


I can't, sorry! :frown:
Original post by steph-carys
I can't, sorry! :frown:


It's on the previous page as an attachment so don't worry :smile: I'll try it and get back to you
Is there an unofficial MS?
Original post by JamieOH
Is there an unofficial MS?


http://www.thestudentroom.co.uk/showthread.php?t=4172260
Original post by omarharoun3


Cheers fella.
Original post by Number Nine
Bye bye uni


That's how I'm feeling too
Original post by Parhomus
Someone help me by telling me the method to the part c of vectors tyvm i think i got it wrong :c.


So how i did it was using the point of intersection (which i called Q)
lAQl=3lQBl (those are mod signs :wink: )
got mod AQ as 140/3 then as you know b lies on line L2, you do line L2-Q and you get a nice little quadratic which gives lambda values, then just sub them in :smile:
Was the direction vector of l2 (3,-5,-1) or (3,-5,1)?


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Original post by Salty carpet
It's on the previous page as an attachment so don't worry :smile: I'll try it and get back to you


I did it again and found mu as 1/2... I reckon we might have found vector AB incorrectly? Possibly writing OB and OA the wrong way around?
Original post by Samtheoneson
You will lose out a mark on final answer A1 so 6/7


And 2/3 for part a)?


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Original post by Yo12345
Was the direction vector of l2 (3,-5,-1) or (3,-5,1)?


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(3, -5, 1)
Original post by ValerieKR
(3, -5, 1)


Ffs, would I only lose one mark for getting costheta as 92/140 and not 52/140 as I got the sign wrong?


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Avatar for Maj12
Maj12
1
Anyone remember question 4? I want to have a go at it again
Would I get a mark for finding the length of CD for 6c), or is that irrelevant?


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Original post by Yo12345
Would I get a mark for finding the length of CD for 6c), or is that irrelevant?


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I'm counting on it
Original post by ThusSpakeAlex
I messed up the coefficients for A and B in first question but i answered the the binomial correctly using my incorrect A and B, will I only lose the marks for incorrect coefficients?

BTW: Did anyone get 1/3 and 5/3 for lambda values?


@cobalt
Original post by 09876543211
I am in a similar position, pretty much every class test I have done resulted in an A*, but now I don't even know. Will your university place be affected?

Mine will be. I have a 2A*A offer from imperial and after these 2 exams which were not just hard but unfair, its pretty much over. Especially after i had a nose bleed in my chem f324 exam. Been a terrible week.

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