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Edexcel Core 3 - 21st June 2016 AM

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Reply 1960

Because the grade boundaries won't have been decided yet, as they're based on how well people perform. And if we've all done really badly then they'll be a lot lower than normal anyway.

This idea that maths exams are 'unfair' is really irritating me tbh. I've f-ed up multiple exams this year, so I get that it's frustrating, but it we can't blame Edexcel for the fact that we can't do every single question. Most people can't, that's kinda the point.

Yeah but for were to do a petition we won't necessarily be attacking edexcel would we? We would only be putting our opinion forward

Reply 1961

username963570

Original post by laws8oy

Cheers bud, looks like an A* is still more than possible for me as long as i do slightly better on C4!

Actually, I don't think this is the case. I think you need 90 on both C3 and C4 for the A*, not an average.

Reply 1962

SturtScooby

Original post by BMWM3

Aha me too. did u guys use quadratic formula to get it?

Nah, I did completing the square.

Reply 1963

username738914

Original post by Elm Tree

Retrospectively, It wasn't as bad as everyone made it out to be. That being said, I did make quite a few silly errors..

OMGGG, look who it is!

How have you been man? Haven't spoken to you since the year 11/12 thread :tongue:

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Reply 1964

SirRaza97

Anyone know how many marks I will lose for 8b if I did the method correctly but put a + instead of a minus in a step?

Reply 1965

laws8oy

Original post by Fas

Actually, I don't think this is the case. I think you need 90 on both C3 and C4 for the A*, not an average.

No its an average across the two

Reply 1966

83457

Original post by Ladbants

What do you lads think you got?

Missed out a solution for one of the trig questions (there were 4, I got 3) -1

Dodgily shaped arcsin graph but I got values right -1 (the negative region for y started to decline in gradient, when it's exponential-ish, but hey that one threw me off guard, since I don't think they've ever asked you to sketch an arc graph before)

For that equation of normal question I put 1/2 as gradient not -0.5, so got my c as 16.5, and not 17.5 (-1 or -2, but probably -2, since gradient would be A1 cao- any thoughts on that one?)

May or may not have lost a mark for the modulus graph where y was 0, as I put 0.5ln(6.25) for the value of x, when that could be simplified to ln(2.5). So possibly another -1

So I probably got 70-71, depending if they're cruel enough to deduct a mark for that last one. In a really unlikely scenario 72.

(edited 7 years ago)

Reply 1967

usycool1

Original post by Fas

Actually, I don't think this is the case. I think you need 90 on both C3 and C4 for the A*, not an average.

You need to average 90 over C3 and C4, and score at least 480/600 overall.

Reply 1968

Elm Tree

Original post by Princepieman

OMGGG, look who it is!

How have you been man? Haven't spoken to you since the year 11/12 thread :tongue:

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Lool it has been quite a while :biggrin:

. So much has happened and changed in such a short space of time lol.. Generally i've been good hbu?

Back then you had like 80 posts now you're on the TSR Support team lol! Do you still see anyone else around from the thread?

Reply 1969

username963570

Original post by usycool1

You need to average 90 over C3 and C4, and score at least 480/600 overall.

Fair enough. It's been a couple of years since I did A-Levels haha.

Reply 1970

usycool1

Original post by Ecomaths

Yeah but for were to do a petition we won't necessarily be attacking edexcel would we? We would only be putting our opinion forward

Sadly, it'd be a waste of time. I'd strongly suggest just trying to concentrate on C4 for now instead - I know how frustrating it is (I was in the batch that did the 'infamous' June 2013 paper or whenever it was) but if it was hard, grade boundaries will be lowered accordingly.

Good luck.

Reply 1971

Jold

How many marks would I lose for mirroring the arcsin X graph in the y axis but put the coordinates in correctly and went through the origin?

Reply 1972

usycool1

Original post by Fas

Fair enough. It's been a couple of years since I did A-Levels haha.

No worries :tongue:

Reply 1973

nihaohy

How many marks will I lose for question two if I got +-rt5 but messed up the range and wrote -rt5<x<rt5 instead?

And for question 6b for messing up the differentiation part but got the methods right for finding the gradient and stuff?

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Reply 1974

SturtScooby

Quoting directly from the specification.
To be awarded an A* students will need toachieve an A on the full GCE Advanced level qualification and an A*aggregate of the A2 units.

Eg, if you did C1, C2,C3,C4,M1,S1 you need 80% from C1,2 and 80% from M1,S1 with an average of 90% in C3 and C4.

Hope this clears things up. (It applies to all Edexcel maths ie, Edexcel Maths, Further maths and the other two)

Reply 1975

Arei1997

Original post by ryanroks1

Think I've got 71, hoping I've got the A*!

u look fresh out the whom what u doing a levels for

Reply 1976

MarocMan

Does anyone have the paper? If not, can someone tell me, if you remember, whether they gave you the range for the "sketch arcsinx" question? As they gave the domain but I can't remember whether they gave the range

Reply 1977

ak33m98

Is it just me that felt really confident going into the exam but feels like they've completely messed up?

Reply 1978

username738914

Original post by Elm Tree

Lool it has been quite a while :biggrin:

Ikr?? Been bloody ages! Awesome to hear dude, what are you up to these days?

Yeah been pretty decent, had a rough scottish results day last year due to complications with coursework etc, so I'm sitting a levels in a year to 'resit'-ish.

AHAHA, yeah, I barely posted :tongue:

. I talk to a few of the folks who are at uni now like Rachel, Bude, L'Evil, The Financier etc

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Reply 1979

somevirtualguy

Original post by MarocMan

-pi/2<=y<=pi/2

This isn't just for this question, the graph must always have that range and domain of -1<=x<=1 otherwise it wouldn't be an inverse function to the sin curve

Edit: 2000th post, where's my prize?

(edited 7 years ago)