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# [Official Thread] OCR MEI AS Mathematics 2016 (C1, C2 & S1) watch

1. 3x^-1/2 ii) -12x^-1 +c

when a=5 sum from u2 to u4 is 25
when a=6 sum from u2 to u4 is 0

r=2 d=3.5 difference is 768-33=735

Angle is 66.5~

y=sin(2x)

graph is translated (0, -3)

logs simplify to -3m

log question x=2.14

area of B is 1/2r^2(theta)-1/2a^2sin(theta)
a is 6root2cm~

trap rule A=22.8 V=1140

sub 4.8 into x, y is> 4.4 therefore wont fit

area according to model is 24 V=1200
sub 5+h and 5 into f(x) simplify to get 8+h
as h-->0 m=8
tangent is y=8x-25
area with axes is 39.0625
simplify logs to get straight line form with gradient b and y intercept log a
a~4.17 b~0.19

therefore y=4.17*10^0.19t

last question sub 4 into w viruses: 260.
2. What was the question to which people got the answers 25 and 0? What did it ask you to do?
3. So disappointed- i know how to do all the questions that were on that paper except for 1 marker but when doing the paper, i made too many mistakes, just had no concentration. Even with the question asking for the equation of the sine curve on the graph i wrote y=sinx- missed the transformation completely...guess i'm retaking c2 next year.
4. Also. My integrated area was massive. 144cm^2. I redid the integration 100 times but I don't see my mistake.

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5. (Original post by ScalyJake)
I also got this. Because the cubed was for the entire log, so you didn't bring it down to the front.
Yeah if you plugged in values for a and m into the calculator it worked out right
6. Was the equation for the sin graph y=sin(2x) ????????
7. Can we all agree there will be low grade boundaries as it was so hard this paper
8. (Original post by Lucuniexet)
Was the equation for the sin graph y=sin(2x) ????????
Yeah
9. (Original post by tom476zf)
yes got this not sure is its right though ?
Got same (-3m) pretty sure its right
10. (Original post by Mr Moon Man)
Yeah
Oh **** I wrote theta. Fml so many stupid mistakes

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11. (Original post by Qwertykeyboard15)
Can we all agree there will be low grade boundaries as it was so hard this paper
Personally, i didn't find it hard at all. I still ****ed up that paper- though this wasn't due to difficulty, but to...i don't even know
12. (Original post by Crozzer24)
The log graph was awful, felt impossible to draw a best line of fit, ended up with y intercept of 0.6 and gradient 0.2 which seems way off
I got exactly the same
13. I put -m^3
14. I got y intercept of 0.58
15. (Original post by Lucuniexet)
for the simplifying log question i got -3m
is this familiar to anyone?!
*****t i just left it as -1^3m. do you think ill get marks for that
16. (Original post by WuMyster)
Also. My integrated area was massive. 144cm^2. I redid the integration 100 times but I don't see my mistake.
I got 144 as well but the answer was 24 apparently which makes a lot more sense as they should be similar but I don't know what I did wrong

I presume you were meant to x the fraction by the x values first and then integrate it.
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17. Answer was -m^3 because the cube was for the whole log
18. Am I the only one who got 20 and 0
19. Did anyone get 5roo4/18 for q.3 b ??
20. (Original post by Akhawais)
Answer was -m^3 because the cube was for the whole log
you times indices across brackets giving you 3m

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