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Edexcel Core 3 - 21st June 2016 AM

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Don't think it was that bad?
C3 just ruined my life.
Unofficial markscheme, tell me what you guys think....

Reasonably ok paper but significantly longer than usual, this should do our ums a treat.

Grade Boundary estimates:
72 100ums
66 90ums
60 80ums
54 70ums
48 60ums
42 50ums
36 40ums

Questions & Answers, (not very helpful at the moment I know...., questions should be up soon):
1) 6.-5
b) largest answer =6

2)x<(-5)^(1/2), x>5^(1/2)

3)c) Angle = 86.1

4) 273.9,33

5) 0.9463

6) 0.5(cosec4y)

7) -(x/2) + 35/2
b)-1-(3^1/2)/2

8) 0.294, -1.277, 1.865, -2.848

9) 5ln(2+2/e)
(edited 7 years ago)
Getting conflicting viewpoints here
Perhaps someone should do a poll
Reply 1164
Avatar for apzoe
apzoe
2
I found it ok. I had to skip some parts but returned at the end and did them all.

Anyone remember exercise 4 last part? Where they ask to show that 1.437 is correct to 3dp. There was no sign change, just an intersection of the 2 graphs...
that had way too much trig. Like wth:angry:
I didn't get this either. I skipped parts also not a great paper imo
Please put your working out so I can see where I went wrong haha
Reply 1168
Avatar for Mwo
Mwo
1
Welp lets hope the grade boundaries are low because I had to skip 10 marks worth of questions
How did you prove it was cotx?
Wtf was that? I was gettin a's in the gold papers but I dont think I got above 40 in this. Goodbye conditional..

Posted from TSR Mobile
I did fcking partial fractions for that question and got 13 and 20, really messed that up :/
Do you guys think they will lower the grade boundaries like the june2013 paper
goodbye to that A* I had hoped for
I thought it was easier than last years paper
Original post by nishofficial
How did you prove it was cotx?


Use tan2x = 2tanx/1-tan^2x
Wtf was that last question
Original post by mathsmo19
Unofficial markscheme, tell me what you guys think....

Reasonably ok paper but significantly longer than usual, this should do our ums a treat.

Grade Boundary estimates:
72 100ums
66 90ums
60 80ums
54 70ums
51 60ums
45 50ums

Questions & Answers, (not very helpful at the moment I know...., questions should be up soon):
1) 6.-5
b) largest answer =6

2)x<(-5)^(1/2), x>5^(1/2)

3)c) Angle = 86.1

4) 273.9,33

5) 0.9463

6) 0.5(cosec4y)

7) -(x/2) + 35/2
b)-1-(3^1/2)/2

8) 0.294, -1.277, 1.865, -2.848

9) 5ln(2+2/e)

They never have done 3 marks difference between grade C and B always been six or seven.
Apart from the last part to the last question I thought it was alright, longer than other past papers though with nine questions, I didn't have time to finish the last one and just guessed 5ln sometihng but ended up with no e in there.
Original post by mathsmo19


4) 273.9,33


Wasn't it 274.9? Or am I remembering it wrong :laugh:
(edited 7 years ago)

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