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OCR MEI FP1 Thread - AM 20th May 2016

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Reply 20

klosovic

Original post by srayogn

Any idea what paper that question is from? & How do you do it :/

Original post by srayogn

What Q.Paper is that from :/ :s-smilie:

It's from January 2013.

Do you mean how do you factorise the end bit or how do you do the whole question?

Reply 21

hoakenfull

Has anyone come across any particularly hard questions in any of the past papers that would be worth doing? Haven't had time to go through every paper.

Reply 22

Don John

Original post by gregsonog

Can you give some more straightforward answers for the questions please? Also under the summations it states r=0, is this the same as r=1? Otherwise, I think 15) on MEI is impossible and makes solving 3) seem wrong too. Anyway here are my answers if you want to correct them:

3) 4n(n-1)
4) line through (0,-j) and (1,0) and then shaded underneath line
5) 3-j, -1+2j, -1-2j
6) A-1 = (-0.5A + 1.5I)
7) 45 degrees anti clockwise followed by enlargement of s.f. 3
12) x=2 for asymptote and then graph
13) (a,0) and (0,a), asymptote is (-1/a) and then got x=-1 for d)
14) a/4w^2 + b/2w +c and aw^2 + (2a+b)w + (a + c + 1)

No. I am purposefully not giving out an exact mark scheme. That's not the point of this paper - it's to stretch your existing knowledge and prepare you for the possibility of harder questions on the real paper.

15 is indeed a typo, thanks for pointing that out. Take r=1.

3) is written correctly.

Those answers look right to me, although I don't think 3) is right. Simplifying the summand gets you 8 - 8r, then use the standard summation formulae on that.

Reply 23

Jamesinatr

Original post by hoakenfull

Has anyone come across any particularly hard questions in any of the past papers that would be worth doing? Haven't had time to go through every paper.

I know it's a little late, but do the graph question and induction question from Jan 13, and the other questions if you have time. The hardest paper by far - you only need 60/72 for full UMS.

Reply 24

Natalie_13

I understand the first 3 parts but having looked at the mark scheme i still don't get how they got that last bits. It's Q9 from January 2006. Also do we need to know about all the parameter stuff with lambda?