Edexcel A2 C3 Mathematics 12th June 2015 Watch

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mikey007_pl
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#2581
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#2581
(Original post by i2yalls)
I got it. Not sure what question though
Yep yep I got that, it was the gradient of the normal I believe on q7 I think..
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dandroff
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#2582
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#2582
(Original post by Joshi213)
Thoughts on the grade boundaries? It was a more challenging paper than last year, but easier than June 2013 so probably 55/75? Then possibly 64 for 90%?
i thought it was easier than last year
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ColeNate
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#2583
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#2583
(Original post by Raizel)
what a depressing paper...
how do they expect us to do all those questions within the time given?
Would have much prefer the june 2013 paper by miles.
I feel the June 2013 paper was easier than this one.
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tomosmithy
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#2584
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#2584
(Original post by Chazley123)
final y coord was pi/3 ?
That's what I got!
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MelonKuma
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#2585
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#2585
(Original post by dandroff)
i said because it is not a one to one mapping. is that incorrect
That's right, so they should award you the marks.
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DoctorDren
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#2586
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#2586
(Original post by dhamm)
k was negative, meaning if you subbed a negative number into the numerator and denominator of the gradient function, they would always be positive. So gradient always positive, and the function is increasing.
That's what I did
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OliviaLin
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#2587
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#2587
(Original post by Chazley123)
I dont think it was 2theta I believe it was just tanA= -1/3
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?
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PaulCJH
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#2588
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#2588
The trig proof:
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delpetra
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#2589
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#2589
(Original post by dandroff)
i said because it is not a one to one mapping. is that incorrect
That is correct!
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cmfunk
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#2590
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#2590
Guys how many marks would you lose for not giving an answer in exact form ( in terms of e). I am sure the question didn't specify to give it in an exact form???
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The fish inspect
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#2591
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#2591
(Original post by anndz3007)
Here is my answer, in random order th
2p/1-p^2,1/(1-p square)^1/2, (p+1)/1-p
Ln7/2,ln3/2
51.8,-25.3
K>33/8
Coordinate=( 0,pi/3)
93 sec
3.1,13.9
-4e^-4<y<1/e something
Fx Decreasing
I got -51.8 and 20something.
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princessBG
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#2592
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#2592
(Original post by BFP=big fat poo)
F***s sake edexcel do they think its a joke setting papers. Do they not realize that there are going to be student sitting these papers, and do they not realize that the results of these exams determine which uni we go to and ultimately our job prospects. Do they think this is a joke? I need grades and edxcel, you have f***ed my life. F*** you edexcel
I KNOW I HATE EDEXCEL ((( lets start a petition
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Mishy96
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#2593
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#2593
(Original post by anndz3007)
Holy sheeeet, i put f'(x) >0, and then just concluded its a decreasing, 1 mark gone
I still think its a decreasing funtion 😳
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BFP=big fat poo
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#2594
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#2594
(Original post by RR97)
You stopped too early - the range is the y values, not the x. 1/2 corresponded to the maximum and 2 to the minimum and you needed to sub those values back in to get the y values. You'll pick up method marks though!
thats what i did, i got x=0.5 and x=2 and i subbed them into the y equation to get y=-0.3 and 0.7
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Zeus579
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#2595
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#2595
I forgot to write the asymptote. Would just lose 1 mark each?
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xyzmaster
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#2596
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#2596
(Original post by RR97)
Maths is different - it's 90 in each unfortunately with maths. (I'm predicted an A* so it's been explained to me)
My friend got 87 c4 and 93 c3. He has an A*
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Braddy16
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#2597
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#2597
I think ranges of g (x) was -4/e^4 to 1/8e

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Ned Stark
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#2598
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#2598
(Original post by Bustamove)
yea same...my solutions were something like 2.(something) to 3.dp and 3. (something) to 3.dp? anyone else got that?
I got 2 something too, but I got 5 something as well because I ended up getting a tan function when I simplified it all
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Nightmare8
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#2599
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#2599
So weird that there wasn't a change of sign or an inverse function. Did anyone else find it weird? O.o
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Sanjaypatel13
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#2600
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#2600
Your ****ing mum was an easy paper you ****
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