# Edexcel A2 C3 Mathematics 12th June 2015Watch

This discussion is closed.
3 years ago
#3041
You're a ****
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3 years ago
#3042
(Original post by Freddy-Francis)
i worked out second deriative and left it :/
1 mark?
you dont have to do all that!

you are told k is negative and its an assymptotic graph so you just sketch it you will see
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3 years ago
#3043
(Original post by Ripper Phoenix)
that video is private i cant access it
The guy must've taken it down because it was just poor.
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3 years ago
#3044
(Original post by xKay)
Its actually increasing
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3 years ago
#3045
What does everyone think on whether it was harder than June 2013. As I found it a lot harder. Sometime needs to create a poll for that to.
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3 years ago
#3046
looooool cant believe your responses this was a piece of piss
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3 years ago
#3047
So I can do the difficult range question but do a sign error so get the coordinates of A wrong by calculating the gradient wrong and missed a solution for one of the trig equations! grrrrrrrr
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3 years ago
#3048
(Original post by xKay)
Its actually increasing
How did you get it to be increasing?

K was negative and it was divided by the square of some function of x. Meaning the gradient at any point could only be negative. As it's always going to be negative/positive = negative. Meaning it's a decreasing function?
0
3 years ago
#3049
(Original post by Johann von Gauss)
Prove: sex 2x + tan 2x = (cos x + sin x) / (cos x - sin x)
Spoiler:
Show
LHS = 1/cos 2x + 2tanx/(1-tan^2 x)
= 1 / (cos^2 x - sin^2 x) + 2sinxcosx / (cos^2 x - sin^2 x)
= (1 + 2sinxcosx) / (sin^2 x + cos^2 x)
= (sin^2 x + 2sinxcosx + cos^2 x) / (cos^2 x - sin^2 x)
= (sin x + cos x)^2 / (cos^2 x - sin^2 x) = (cos x + sin x) / (cos x - sin x)QED
wrong u dummy
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3 years ago
#3050
(Original post by PhysicsFiend)

See the range, it should be y=-5 for f(x) and y=5 for |f(x)|
Not y=5
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3 years ago
#3051
(Original post by Navakiza)
I genuinely think that this was a difficult paper, there was a lot in there that stretched people's knowledge and I think that will show in the grade boundaries. We're forgetting that the boundaries are set by how people have done overall, if a lot of people think they've done badly then the boundaries will reflect that.
I would agree it was trickier compared to previous years papers (except June 13 which was harder by miles). All I'm saying is that there was nothing on that paper which would have thrown a well prepared candidate off. My further maths class found it to be a reasonable paper.
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3 years ago
#3052
(Original post by AJeeeee)
im sorry, wasnt my intention
hahahha its okayy
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3 years ago
#3053
(Original post by Emmi12345)
Attachment 426305

There you go. Die no more.
why have you worked from right to left? is that even allowed? i thought its always prove left to right
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3 years ago
#3054
Is Arsey doing a mark scheme? Haven't heard anything from him
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3 years ago
#3055
(Original post by iceangel8)
So I can do the difficult range question but do a sign error so get the coordinates of A wrong by calculating the gradient wrong and missed a solution for one of the trig equations! grrrrrrrr
growl all you want YOU ARE STILL A DUMMY
0
3 years ago
#3056
(Original post by anonwinner)
What did everyone get for question 10 part a? I nearly missed the entire question because it was on the last page so I only had 5 mins to do it!
Just another copycat troll, sad really..
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3 years ago
#3057
How long ARSEEYYYY im sitting here refreshing wait 4 uuuu x
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3 years ago
#3058
There was 10...on the last page after the division question
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3 years ago
#3059
(Original post by kprime2)
Well the point of the thread is for people to give their opinions about how they found the paper. We don't slack people when they say they found it really difficult, so then why do we do slack people when they find it easy?

Some people will do good, some will do bad. That's the nature of exams. A person who did good should have every right to boast about their exam as someone who did bad and complains.
I have nothing against people saying that they did well, but making fun of others not doing as well as you is not something that I agree with...
1
3 years ago
#3060
theyre out!
0
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