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# 2016 c34 ial watch

1. Hi so I'm currently doing this paper and am confused with the mark scheme

Page 10 : https://0025309b76bc88a0e4c3444acd03...%20Answers.pdf

How does

?

Shouldn't it be ?
2. You are right. Mark scheme is wrong!
3. (Original post by Math12345)
You are right. Mark scheme is wrong!
Though so, the answer I got was

Which is the same as the mark scheme except I have
4. (Original post by edothero)
Though so, the answer I got was

Which is the same as the mark scheme except I have
Wolfram agrees with you (constant A replaced with constant c1)
https://www.wolframalpha.com/input/?...Dy%283x^2-4%29
5. (Original post by edothero)
Hi so I'm currently doing this paper and am confused with the mark scheme

Page 10 : https://0025309b76bc88a0e4c3444acd03...%20Answers.pdf

How does

?

Shouldn't it be ?
Yeah, you're right.

This was my paper!
6. (Original post by Zacken)
Yeah, you're right.

This was my paper!
I hope my paper in June is of the same difficulty

How did you do on this paper?

Just finished, got 119/125
Nothing too challenging; didn't know how to do 4b.

Made a rookie error on the second part of 13b so I gave myself 3/6
Spoiler:
Show

Should be

And was unable to do 13d, I don't understand how the answer was obtained though? Mind explaining?
7. (Original post by edothero)
I hope my paper in June is of the same difficulty

How did you do on this paper?

Just finished, got 119/125
Nothing too challenging; didn't know how to do 4b.

Made a rookie error on the second part of 13b so I gave myself 3/6
Spoiler:
Show

Should be
And was unable to do 13d, I don't understand how the answer was obtained though? Mind explaining?
I gave my answer to Q3 as instead of and lost a mark for that, so 124/125 = 198/200 UMS. Super annoying.

Q13 (d) just wants you to appreciate that if t runs between -pi/2 and pi/2 then sin t runs between -1 and 1 so 2 sin t runs between -2 and 2, but y = 2 sin t, so y runs between -2 and 2. Which is precisely what -k < y < k says when k=2.
8. (Original post by Zacken)
I gave my answer to Q3 as instead of and lost a mark for that, so 124/125 = 198/200 UMS. Super annoying.

Q13 (d) just wants you to appreciate that if t runs between -pi/2 and pi/2 then sin t runs between -1 and 1 so 2 sin t runs between -2 and 2, but y = 2 sin t, so y runs between -2 and 2. Which is precisely what -k < y < k says when k=2.
LOL you had one job

In hindsight that makes sense and is quite obvious, oh well

Thanks, and well done on your results, I need not bother to ask for the rest of your results as you probably got the 95-100 UMS in the rest
What will you be taking in the summer? Or in a couple weeks/month, should I say.
9. (Original post by edothero)
LOL you had one job

In hindsight that makes sense and is quite obvious, oh well

Thanks, and well done on your results, I need not bother to ask for the rest of your results as you probably got the 95-100 UMS in the rest
What will you be taking in the summer? Or in a couple weeks/month, should I say.
Yeaaaah, it's just that it's not even technically a mistake and my form looks so much neater that pisses me off about it.

I'll be doing FP2/3, S3 and Physics 4-6. I sat the majority of my exams in Jan, so that's outta the way. I presume you're doing FP2/3 alongside me as well as some of the applied modules and C34? (and STEP)
10. (Original post by Zacken)
Yeaaaah, it's just that it's not even technically a mistake and my form looks so much neater that pisses me off about it.

I'll be doing FP2/3, S3 and Physics 4-6. I sat the majority of my exams in Jan, so that's outta the way. I presume you're doing FP2/3 alongside me as well as some of the applied modules and C34? (and STEP)
Yeah I know what you mean

Yep, FP2/3, C3/4 (I'm UK based), S2/M2 and STEP I and II for banter. As I don't need STEP to get into Uni .
11. (Original post by edothero)
Yeah I know what you mean

Yep, FP2/3, C3/4 (I'm UK based), S2/M2 and STEP I and II for banter. As I don't need STEP to get into Uni .
Warwick, right?
12. (Original post by Zacken)
Warwick, right?
Not quite, I will be studying Computer Science at uni as that is what interests me the most .
Though I will miss pure Maths, a lot
13. (Original post by edothero)
Not quite, I will be studying Computer Science at uni as that is what interests me the most .
Though I will miss pure Maths, a lot
Oh, wow! Where?

Tbf, Comp Sci has quite a bit of pure maths, so you're in for a treat.
14. (Original post by edothero)
I hope my paper in June is of the same difficulty
I honestly hope it's a bit harder then this, and moderate overall.

The grade boundary of Jan 2016 was punishing.

115ish for full UMS would be decent.
15. (Original post by Zacken)
Oh, wow! Where?

Tbf, Comp Sci has quite a bit of pure maths, so you're in for a treat.
KCL. My FM teacher didn't want to predict me an A* even though I averaged 277 in AS so I got rejected by Imperial
And UCL ran out of places by the time they reached my application.. (made me wait 6 months and 7 days)

Yeah I will be taking a couple modules (some compolsury and some optional) on AI which look very Maths-y.
My degree includes a year in industry so if I can line up a good job in the heart of London, I could potentially be set for when I graduate.

Or ya'know, I could just do a year abroad and have the time of my life
16. (Original post by SaadKaleem)
I honestly hope it's a bit harder then this, and moderate overall.

The grade boundary of Jan 2016 was punishing.

115ish for full UMS would be decent.
Yeah I just want an average paper with average 67-68 for A* boundaries, nothing too easy as one slip up could cost you the A*.

S2 is the worst, all the individual questions are worth like 3 marks at least, and it's usually 71 to get an A*
17. https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

Hi. How do I do 5(ii) and 13 c and d? I'm struggling with this thing badly!
18. (Original post by sabahshahed294)
https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

Hi. How do I do 5(ii) and 13 c and d? I'm struggling with this thing badly!

Note that so if you integrate that, you get , if you plug in limits, you get:

19. (Original post by Zacken)

Note that so if you integrate that, you get , if you plug in limits, you get:

I'm sorry but I didn't get you lol? I understood the working but own thread?
20. (Original post by sabahshahed294)
I'm sorry but I didn't get you lol? I understood the working but own thread?
You should create your own thread by clicking "compose thread" in the forum and ask your question there, not use someone elses thread to ask your question. You may want to read up the FAQ!

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