Edexcel A2 C4 Mathematics June 2015 - Official Thread

Reply 1100

anonwinner

19

Original post by TeeEm

look at post 260 in
http://www.thestudentroom.co.uk/showthread.php?t=3327325

Thanks, I hope you are correct

Reply 1101

TeeEm

19

Original post by anonwinner

Thanks, I hope you are correct

I hope so too, for the sake of my students

Reply 1102

kaya_lioness

9

Thank you

My 4 root 3 Pi is negative.

Original post by Gilo98

maybe a sign slip? below is my workings with a positive answer.

vol of rev about y axis .jpg

Reply 1103

Gilo98

14

Original post by kaya_lioness

Thank you

My 4 root 3 Pi is negative.

No worries

Reply 1104

username1571649

17

Me too, how are you going about revision? I'm finding it tough to balance

Posted from TSR Mobile

Reply 1105

Bustamove

19

I've been hearing alot about IYGB papers on TSR lately..what are they? are they like the gold papers? are they custom questions or are they taken from previous exams? or are they like solomons?

does anyone know where I can get them?
thanks :smile:

Reply 1106

raypalmer

2

Link to some hard papers please fam

Posted from TSR Mobile

Reply 1107

kaya_lioness

9

Hi Could someone please explain 4 B 2013 June R? ( paper attached)

https://a086a5a2f39bda93734c56a63fab1d7be0a9ba38.googledrive.com/host/0B1ZiqBksUHNYQXE5T2xiNDBRd2s/June%202013%20(R)%20QP%20-%20C4%20Edexcel.pdf

Thanks :smile:

Reply 1108

Gilo98

14

Original post by kaya_lioness

Hi Could someone please explain 4 B 2013 June R? ( paper attached)

https://a086a5a2f39bda93734c56a63fab1d7be0a9ba38.googledrive.com/host/0B1ZiqBksUHNYQXE5T2xiNDBRd2s/June%202013%20(R)%20QP%20-%20C4%20Edexcel.pdf

Thanks :smile:

8-9x = 7100. Solve for x and sub this value into your expansion.

(edited 8 years ago)

Reply 1109

kaya_lioness

9

Original post by Gilo98

8-3x = 7100. Solve for x and sub this value into your expansion.

Danke.I tried that But in the mark scheme they use the value of x=0.1 and placed that into the expansion.

Reply 1110

math42

20

Original post by raypalmer

Link to some hard papers please fam

Posted from TSR Mobile

To be honest the hardest C4 paper I know of is probably last year's which wasn't exactly mind-blowing
You could go on TeeEm's IYGB thread; the papers are certainly more suitable than Solomon and they are hard

Reply 1111

TeeEm

19

Original post by raypalmer

Link to some hard papers please fam

Posted from TSR Mobile

http://www.thestudentroom.co.uk/showthread.php?t=3361905

Reply 1112

Gilo98

14

Original post by kaya_lioness

Danke.I tried that But in the mark scheme they use the value of x=0.1 and placed that into the expansion.

waaaat? why would they do that? Btw just realised i misread - 8-9x not 3x :smile:

i shall investigate

Reply 1113

TeeEm

19

Original post by Bustamove

I've been hearing alot about IYGB papers on TSR lately..what are they? are they like the gold papers? are they custom questions or are they taken from previous exams? or are they like solomons?

does anyone know where I can get them?
thanks :smile:

http://www.thestudentroom.co.uk/showthread.php?t=3361905

Reply 1114

math42

20

Original post by kaya_lioness

Danke.I tried that But in the mark scheme they use the value of x=0.1 and placed that into the expansion.

|x| < 8/9 so don't do 8 - 9x = 7100
Instead see if there's a nice clean cube factor you can take out and then multiply by at the end

Reply 1115

Bustamove

19

Original post by TeeEm

http://www.thestudentroom.co.uk/showthread.php?t=3361905

Thank you

Reply 1116

TeeEm

19

Original post by Bustamove

Thank you

no worries

read instructions in http://madasmaths.com/archive_iygb_practice_papers_c4_practice_papers.html

Reply 1117

raypalmer

2

Original post by TeeEm

http://www.thestudentroom.co.uk/showthread.php?t=3361905

Cheers pal

Posted from TSR Mobile

Reply 1118

raypalmer

2

Original post by 1 8 13 20 42

To be honest the hardest C4 paper I know of is probably last year's which wasn't exactly mind-blowing
You could go on TeeEm's IYGB thread; the papers are certainly more suitable than Solomon and they are hard