Year 12s: what will be the first way you research your future options? >>

4756 OCR MEI FP2 22nd June 2015

Scroll to see replies

Reply 160

SH0405

What do you think?;

100UMS: 71
90UMS: 66
A: 61
B: 55
C: 49
D: 43
E: 37
U: 0

Reply 161

Buses

That paper was freakishly easy.100 ums woo!

Reply 162

SH0405

Original post by Buses

That paper was freakishly easy.100 ums woo!

Confidence is a virtue. Is that what they say?

Reply 163

chizz1889

Original post by lizard54142

It did say "Using de Moivre's Theorem" :frown:

You will either get full marks or no marks.

Maybe 1/5 for rearranging to find cos5x = 16cos^5 x + 5cos3x + 3cosx or whatever it was before you had to find cos3x

What do you think? Might still get A marks for correct identity but not get M marks? So maybe I could drop 2?

(edited 8 years ago)

Reply 164

chizz1889

Original post by SH0405

What do you think?;

100UMS: 71
90UMS: 66
A: 61
B: 55
C: 49
D: 43
E: 37
U: 0

It was 72 for 100UMS last year, 63 for 90% and 56 for an A. it was similar difficulty so can't see it increasing by 3!

(edited 8 years ago)

Reply 165

SH0405

Original post by chizz1889

It was 63 last year for 90% and 56 for an A. it was similar difficulty so can't see it increasing by 3!

No it wasn't. That's incorrect. Last year it was 66 for 90% and 60 for an A.

Reply 166

lizard54142

Original post by chizz1889

I honestly couldn't tell you. It specifically told you to use de Moivre's, but you may get the answer mark/s.

Reply 167

ETRC

Original post by SH0405

How would you compare the difficulty of this paper to others?

i'm pretty sure MEI ran out of questions to ask us cos i've seen almost all of those questions before

8 marks for maclaurin ln(1+x/1-x) and it came up like 3 times before lol

the circle question was easy and the matrices was standard too

the hyperbolic questions was simple- easiest one maybe?

i might have lost one mark cos i said +c is 0 for integral of artanh x cos i know the graph goes through 0 lol

Reply 168

mathsexam2013

Hey, for the 2nd to last matrix qs i left d as ((-1)^4 0 7^4) how many marks would i lose

Reply 169

djsimpy

Original post by lizard54142

Probably 1/2, like SH0405 said you had to use partial fractions, and they almost certainly wanted you to "derive" the result rather than copy it off the sheet.

i used substitution. worked out nice and irie, giving the answer they wanted.

Posted from TSR Mobile

Reply 170

lizard54142

Original post by djsimpy

i used substitution. worked out nice and irie, giving the answer they wanted.

Posted from TSR Mobile

Was it

x = tanhu

by any chance? :wink:

Reply 171

chizz1889

Original post by SH0405

No it wasn't. That's incorrect. Last year it was 66 for 90% and 60 for an A.

Yeah sorry I mean June 2013

Reply 172

RemainSilent

Interesting to see if I can get an A smashed this paper (although argand diagram was incorrect) overall. Hopefuly NM and M1 will bing AS FM up :smile:

Reply 173

chizz1889

Original post by lizard54142

I honestly couldn't tell you. It specifically told you to use de Moivre's, but you may get the answer mark/s.

Meh oh well, I should still get an A* which is all that matters at the end of the day!

Reply 174

chizz1889

Original post by mathsexam2013

Hey, for the 2nd to last matrix qs i left d as ((-1)^4 0 7^4) how many marks would i lose

Just the A1 probably

Reply 175

Buses

Original post by chizz1889

If I used double angle formula to find the cos5x identity instead of de moivres theorem how many marks would I lose? It was out of 5, got the correct answer using double angle formula but now in hindsight I think it said using de moivres theorem?