OCR (NOT MEI) Core 2 Exam - 22nd May 2014

Reply 20

nevster

8

Original post by BrokenS0ulz

X^12 + something x^7 + something x^2 + something something something??? I can't remember

then something x^-3 + something x^-8

Reply 21

p625ccc

A list of C2 answers that I memorised
1. Q1
a. 36.3
b. 9.822
c. 14.5

2. Q2
a. 2,5,8
b. 2420

3. Q3
a. 8pie
b. 48-36*3^1/2

4. Q4
a. 71.6 251.6 116.6 296.6
5. Q5
a. Log486/log144

6. Q6
a. X^12+8x^7+24x^32x^-3+16x^-8
b. 1/13+1+8-16-16/7

7. Q7
a. 100
b. 3
c. 3+5^1/2 3-5^1/2

8. Q8
a. N=28
b. R=-1/2 a=6

(edited 9 years ago)

Reply 22

BrokenS0ulz

3

Original post by arryson

Yh I got something like that. Did u get a fraction at the beginning and at the end when u integrated it?

Original post by nevster

then something x^-3 + something x^-8

Yeah I think I did get a fraction, just realised I minuses one from the power instead of adding. Hopefully only a couple marks lost

Reply 23

BrokenS0ulz

3

Actually no I did add!!! Yayu

Reply 24

nevster

8

Original post by p625ccc

A list of C2 answers that I memorised
1. Q1
a. 36.3
b. 9.822
c. 14.5

2. Q2
a. 2,5,8
b. 2420

3. Q3
a. 8pie
b. 48-36*3^1/2

4. Q4
a. 71.6 251.6 116.6 296.6
5. Q5
a. Log486/log144

6. Q6
a. X^12+8x^7+24x^32x^-3+16x^-8
b. 1/13+1+8-16-16/7

7. Q7
a. 100
b. 3
c. 6+5^1/2 6-5^1/2

8. Q8
a. N=28
b. R=-1/2 a=6

for Q7 c I got 3+rt5 because I thought you divide both terms by 2?

Reply 25

BrokenS0ulz

3

Original post by p625ccc

A list of C2 answers that I memorised
1. Q1
a. 36.3
b. 9.822
c. 14.5

2. Q2
a. 2,5,8
b. 2420

3. Q3
a. 8pie
b. 48-36*3^1/2

4. Q4
a. 71.6 251.6 116.6 296.6
5. Q5
a. Log486/log144

6. Q6
a. X^12+8x^7+24x^32x^-3+16x^-8
b. 1/13+1+8-16-16/7

7. Q7
a. 100
b. 3
c. 6+5^1/2 6-5^1/2

8. Q8
a. N=28
b. R=-1/2 a=6

I agree with all your answers except 7c. I think I got 3 +- root 5?

Reply 26

arryson

I actually got the log right. Fully isolated x from the logs. but I didn't fully simplify it the log in the fraction...

Reply 27

The_Blade

OP

6

did it say exact value for area segment? I got 88.66 lool

Reply 28

arryson

Original post by BrokenS0ulz

I agree with all your answers except 7c. I think I got 3 +- root 5?

Same I got 3+- too

Reply 29

p625ccc

Original post by nevster

for Q7 c I got 3+rt5 because I thought you divide both terms by 2?

Yeh Typo. Corrected

(edited 9 years ago)

Reply 30

BrokenS0ulz

3

For last question did anyone only use like half a page? I turned over and there was a whole other page for wirking

Reply 31

dathtom

14

Original post by BrokenS0ulz

For last question did anyone only use like half a page? I turned over and there was a whole other page for wirking

Yeah I rearranged the equation wrong and crammed it all in before realising there was space on the back -.-

Reply 32

arryson

What did people get for their x = f(y) in the last question. And how did they get their lower limit? :s

Reply 33

peakneek

1

Original post by p625ccc

A list of C2 answers that I memorised
1. Q1
a. 36.3
b. 9.822
c. 14.5

2. Q2
a. 2,5,8
b. 2420

3. Q3
a. 8pie
b. 48-36*3^1/2

4. Q4
a. 71.6 251.6 116.6 296.6
5. Q5
a. Log486/log144

6. Q6
a. X^12+8x^7+24x^32x^-3+16x^-8
b. 1/13+1+8-16-16/7

7. Q7
a. 100
b. 3
c. 3+5^1/2 3-5^1/2

8. Q8
a. N=28
b. R=-1/2 a=6

sounds about right to me

Reply 34

username1060297

21

Original post by The_Blade

did it say exact value for area segment? I got 88.66 lool

Same - my calculator wouldn't give it exact and I couldn't be bothered to do it myself so I just wrote out the massive decimal. Probably lost a mark for that :/

Reply 35

peakneek

1

Original post by arryson

What did people get for their x = f(y) in the last question. And how did they get their lower limit? :s

lower limit was just 1.

Reply 36

okcherubble88

9

Think i got 3+rt 5 (or similar I've forgotten) as well for q7
All went smoothly till the 8 marker at the end; what a joke that was.

Reply 37

BrokenS0ulz

3

Original post by arryson

What did people get for their x = f(y) in the last question. And how did they get their lower limit? :s

Can't remember but I think it had 3 terms. You set x as 0 into the eqn given and solved it to find lower limit

Reply 38

mitchellshazia

6

Original post by BrokenS0ulz

For last question did anyone only use like half a page? I turned over and there was a whole other page for wirking

Yeah this happened to me

Reply 39

Chickenj90

1

I found this paper quite hard and I don't normally find c2 a problem questions 8a and last one of 9 were my faults.
Anyone got an idea of the grade boundaries according to past papers and difficulty. Most of my school came out of the exam saying it was hard.

What do you guys think about the exam?

OCR (NOT MEI) Core 2 Exam - 22nd May 2014

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