Edexcel A2 C3 Mathematics 12th June 2015 Watch

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dandroff
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#2641
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#2641
(Original post by BFP=big fat poo)
Also guys, for the asymptotes I got 2? y=-5 and y=5?
me too because its modulus on the x axis
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MrBowcat
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#2642
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#2642
(Original post by rory58824)
There wasn't a question 10 was there? Only 9 questions?
there were 21 quesions
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sj97
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#2643
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#2643
(Original post by STATER)
Did someone say no asymptotes? LOL
"If a known function has an asymptote (such as y=0 for f(x)=ex), then the translations of it also have an asymptote. If a known function has an asymptote, then the scaling of the function also have an asymptote."
DId you get - ln0.5/40 for the exponentials question?
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pmc5445
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#2644
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#2644
Do you think you can still get an a* overall if you do exceptionally well in c4? Say if you got an a (fingers crossed) in this paper
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JackRTBlake
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#2645
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#2645
(Original post by rory58824)
Question 10? What?
Yeah I swear to god there wasn't a Q10 unless some had a different paper !?
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Chazley123
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#2646
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#2646
(Original post by OliviaLin)
I got this too..

Cross multiply with 1/2 , expand brackets and divide all terms by cosA to get tanA = -1/3 after rearranging..

2 answers right?
yes two answers 2pi- your theta, and pi - your theta
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rory58824
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#2647
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#2647
If anyone could answer that would be great

There were 9 questions right? Not 10?
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lollipopsftw
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#2648
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#2648
patiently waiting for Arsey
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IWantSomeMushu
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#2649
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#2649
There were only 9 questions ffs...
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jf1994
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#2650
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#2650
(Original post by BFP=big fat poo)
Also guys, for the asymptotes I got 2? y=-5 and y=5?
Debatable, I personally thought that the second graph had no asymptote but it looks like most people agree with you. Gotta wait for Arsey to clear it up
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Jemy
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#2651
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#2651
(Original post by xKay)
When is the hitler video out?
Even Hitler didn't loose the war in such a humiliating fashion, this is more like Stannis burning his own daughter for the lord of light and in return not getting Winterfell
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bored565
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#2652
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#2652
(Original post by PaulCJH)
The trig proof:
Attachment 426189
I was damn close to getting this. I had the brackets on the numerator but I just didn't spot that cos^2 A - Sin^2 A is (Cos A + Sin A)(Cos A - Sin A), which was pretty dense of me...
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Alexfailedmaths
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#2653
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#2653
hahahahaha i got that as well but im sure its wrong. So good that someone else got it tho :')
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Fanta4TheBanter
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#2654
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#2654
The UK paper wasn't that bad. If you'd done all the past papers including R/IAL papers then it was pretty standard.
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The fish inspect
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#2655
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#2655
(Original post by Issaa)
This is exactly what I got! Many people are saying its wrong but I can't see what else it could be.... :/
You were meant to keep it in e^x form. You'll still get the marks I think
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lukass
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#2656
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#2656
for 8b) where

sec 2y + tan 2y = 1

how did people do this?? I was so confused...
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dandroff
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(Original post by Renascence)
Other than the trig proof, the paper was of standard difficulty I reckon. Some questions were tricky and the format of the paper was unusual, but I wouldn't expect grade boundaries to drop more than 2 marks from last year.
to be fair i thought the first question was not a standard first question. normally its simplify algebra equation or something... but that trig one was alright i guess
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Emmi12345
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#2658
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#2658
For anyone wondering about the Trig identity... Here's how I did it. Not the only way of course, but I think it's the quickest/easiest?

Name:  photo-2.jpg
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STATER
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#2659
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#2659
(Original post by sj97)
DId you get - ln0.5/40 for the exponentials question?
Yh but you had to express it as an integer so it ended up as ln2
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kewbacca
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#2660
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#2660
Guys for the range of k I got -2root5<k<2root5 cos I misread the question and thought that it was find the range where k DOES have a solution...would that just be one mark knocked off for final answer being wrong??
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