OCR FP2 (not mei) 22/06/15

Original post by Mendeleev

Started revising today. Did 5 papers, got 90%+ on them all, so I'm gonna go get drunk and hope I don't forget it all :smile:

I just hope the polar coordinates question isn't too hard. I still don't feel very comfortable using them.

Nice, congrats bro. Work hard play hard

Posted from TSR Mobile

(edited 8 years ago)

Reply 23

Mendeleev

7

Original post by lllllllllll

Nice, congrats bro. Work hard play hard

Posted from TSR Mobile

You got it :biggrin:

Reply 24

000alex

In the formula booklet, what are you allowed to substitute into the Maclaurin series and the differentiation/integration formulae for x?
Can you replace x with nx (n is any number) or a linear/quadratic etc function?

Reply 25

Jai Sandhu

12

Original post by 000alex

In the formula booklet, what are you allowed to substitute into the Maclaurin series and the differentiation/integration formulae for x?
Can you replace x with nx (n is any number) or a linear/quadratic etc function?

Yup!

Reply 26

Jai Sandhu

12

I am starting revision tomorrow.

Original post by Mendeleev

Started revising today. Did 5 papers, got 90%+ on them all, so I'm gonna go get drunk and hope I don't forget it all :smile:

I just hope the polar coordinates question isn't too hard. I still don't feel very comfortable using them.

90 raw, impressive.

Reply 27

kabilan13

1

flopped fp3 and m2 this year so need to go for 100 on fp2 to have any hope for A*
that fp3 was terrible

Reply 28

Does anyone understand the logic behind Jan 2013 Q7 (iii)

Spoiler

(edited 8 years ago)

Reply 29

SilentPotato

Original post by lllllllllll

Does anyone understand the logic behind Jan 2013 Q7 (iii)

Spoiler

Here's what I did. It's basically the same as you but a little simpler?

Spoiler

(edited 8 years ago)

Reply 30

Original post by SilentPotato

Here's what I did. It's basically the same as you but a little simpler?

Spoiler

Surely that would mean we're drawing a Cartesian equation on the polar plane?

I'm going to differentiate the equation in part (iv) when I get back just to be sure.

(edited 8 years ago)

Reply 31

Original post by SilentPotato

Here's what I did. It's basically the same as you but a little simpler?

Spoiler

It does work. ie I just differentiated the equation in (iv) and the tangent at P is the same so I suppose it's correct. Very interesting and fun problem though

I think I'm going to look at more polar coordinate problems seeing as I am fairly weak on them :smile:

Reply 32

SilentPotato

Original post by lllllllllll

It does work. ie I just differentiated the equation in (iv) and the tangent at P is the same so I suppose it's correct. Very interesting and fun problem though

I think I'm going to look at more polar coordinate problems seeing as I am fairly weak on them :smile:

You seem to understand them better than me, and I'm not worried.

Why does it mean we're just drawing a cartesian equation on the polar plane if we can find the tangent? And surely the fact that you can change it to a cartesian equation in the last part means that?

You got me confused.

Reply 33

Original post by SilentPotato

You seem to understand them better than me, and I'm not worried.

Why does it mean we're just drawing a cartesian equation on the polar plane if we can find the tangent? And surely the fact that you can change it to a cartesian equation in the last part means that?

You got me confused.

We're not drawing a cartesian equation on the polar plane, it was just the impression I got when I was reading the mark scheme :tongue:

Reply 34

BecauseFP

Does anyone have a list of the grade boundaries for FP2 are? I'm trying to work out what the best, worst and average boundaries for an A are.

Reply 35

Jai Sandhu

12

Original post by BecauseFP

Does anyone have a list of the grade boundaries for FP2 are? I'm trying to work out what the best, worst and average boundaries for an A are.

I dont however I can give you a rough idea of boundaries.

49-52 for an A, and 56-59 for an A* is correct on average.

Reply 36

Thisguy11

18

Original post by BecauseFP

Does anyone have a list of the grade boundaries for FP2 are? I'm trying to work out what the best, worst and average boundaries for an A are.

they can fluctuate, recent papers tend to be in the high 50s for an A* but jan 13 for one was at 68

http://www.ocr.org.uk/i-want-to/check-results/results-statistics/

Reply 37

NoHetero

Does anyone have any idea how to do Q9iv) on the Jan 2012 paper?? I get really confused when they start mixing summing series with other topics :s-smilie:

Reply 38