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Mr M's OCR (not OCR MEI) Core 2 Answers May 2013

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Well the working is correct even if your use of the calculator leaves a lot to be desired. Drop 1 mark.

Hi

For question 7 ii

I found the equation of the tangent and integrated, but using the wrong limits! Damnit. I still took the area under the tangent away from the area under the curve. Will I lose much? :smile:

Reply 161

Farringtonn

For the logs question did you have to use the inequality sign all the way through or could you use =, I only used the inequality sign towards the end :smile:

Reply 162

Cowcat

Would you lose any marks in the last question for putting your answer in degrees?

Reply 163

ZachM

What would 66/72 be? :smile:

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Reply 164

BOSS MAN MIKE

Question 8 i) c) , What if you put 'a' as 1 and not more than 1?

Reply 165

GeorgeBarrett1

Mr M on 6)ii I did not do the first part showing 1.3^n<something, but I got N=17 how many marks will I loose, also on 8)c)ii) I simplified the logs and subbed in 2/a but didn't get a final answer in the form it asked for it in. Everything else was correct on my paper will I still be able to get a A?

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Reply 166

joetodd

Hey Mr M, thanks for the answers again :smile:

How many marks would I lose for leaving the integral question as 1.23? However I had it in exact form just above it?

thanks

Reply 167

SBH2H

For question 7(ii), I found the equation of the tangent and integrated to find the area beneath it (between 4 and 5/3). I got the correct answer, so will this be alright?

Reply 168

Goods

Original post by Mr M

Would there be any problem in quoting the angles in the first question to 1dp?

Reply 169

AlmightyPhil

Mr M,

Also for question 9(ii) I did the algebraic division with 2x+1 and got 0 as an end result and then commented that the 0 remainder meant that (2x+1) is a factor of f(x). Would this still be proof of (2x+1) being a factor?

Reply 170

Big-Daddy

What would you guess is the 100 UMS boundary for this year? Maybe 70/72?

Reply 171

Becky.96

I think the grade boundaries on this exam will be quite low due to it being a hard exam and core 1 on monday being so easy :smile:

Reply 172

Mr M

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Original post by DingDong!

drop 2

Reply 173

Mr M

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Original post by Farringtonn

For the logs question did you have to use the inequality sign all the way through or could you use =, I only used the inequality sign towards the end :smile:

drop 1 if you are unlucky

Reply 174

Mr M

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Original post by Cowcat

Would you lose any marks in the last question for putting your answer in degrees?

Probably drop only one.

Reply 175

Mr M

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Original post by BOSS MAN MIKE

Question 8 i) c) , What if you put 'a' as 1 and not more than 1?

drop 1 mark

Reply 176

Mr M

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Original post by GeorgeBarrett1

6ii) drop 3

8cii) drop 2

Reply 177

Mr M

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Original post by joetodd

Hey Mr M, thanks for the answers again :smile:

How many marks would I lose for leaving the integral question as 1.23? However I had it in exact form just above it?

thanks

That will be ok if you wrote down the exact form.

Reply 178

Mr M

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Original post by SBH2H

For question 7(ii), I found the equation of the tangent and integrated to find the area beneath it (between 4 and 5/3). I got the correct answer, so will this be alright?