Edexcel C3,C4 June 2013 Thread

http://papers.xtremepapers.com/Edexcel/Advanced%20Level/Mathematics/Subject%20Sorted/C4/Elmwood%20Papers/

Original post by MathsNerd1

Is there a link to these papers anywhere as I'm not common of them and I've actually been going slow for the main reason I'll be complete too early for the exam which would be the worst position to be in.

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Oops my bad they're call Elmwood lol and here you go :smile:

Reply 182

larryb

Im in AS now and I was wondering how hard C3 and C4 are compared to C1 and C2? I got 90% in C1 and did equally well in a C2 mock but I'm a little worried as people say it's a lot harder. :/

Reply 183

Original post by ACBLISS

lol You truly cannot trust edexcel anymore! That 2^t question was in that black book i'm using right not, last question of the exercise :eek:

I say do everything you possibly can for c4 and no second chance :tongue:

Yeah I never really did trust them much before and I'm taking the assumption that they're making all the exams harder in a sense as that's what they did with the S2 exam in January, or at least that's how I felt about it. Yeah I'll do all that is physically possible for C4 as I'm hoping for 2 A*'s in both maths and further.

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Reply 184

Original post by MathsNerd1

Yeah I never really did trust them much before and I'm taking the assumption that they're making all the exams harder in a sense as that's what they did with the S2 exam in January, or at least that's how I felt about it. Yeah I'll do all that is physically possible for C4 as I'm hoping for 2 A*'s in both maths and further.

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They seriously are! We just have to step it up aswell and make sure we can do any question come june.

Reply 185

Original post by ACBLISS

They seriously are! We just have to step it up aswell and make sure we can do any question come june.

Indeed! Then I'll be into Warwick, on the assumption I can get the grade in Chemistry and in AEA/STEP too, can't wait! :biggrin:

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Reply 186

Original post by MathsNerd1

Indeed! Then I'll be into Warwick, on the assumption I can get the grade in Chemistry and in AEA/STEP too, can't wait! :biggrin:

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That's the spirit! :biggrin:

But to get to a position were we can answer any question we have to put in the work, so i require your assistance :tongue:

"A hollow right circular cone has height 18cm and base radius 12cm. It is held vertex downwards beneath a tap leaking at the rate of 2cm^3s^-1.
Find the rate of rise of water level when the depth is 6cm."

:biggrin:

Tbh i think i'm fine with connected rates of change, just some questions like the above catch me out :confused:

Reply 187

Original post by larryb

Im in AS now and I was wondering how hard C3 and C4 are compared to C1 and C2? I got 90% in C1 and did equally well in a C2 mock but I'm a little worried as people say it's a lot harder. :/

I think the jump from c2 to c3 is a bit hard but c3 to c4 is fine :smile:

Reply 188

Original post by ACBLISS

That's the spirit! :biggrin:

But to get to a position were we can answer any question we have to put in the work, so i require your assistance :tongue:

"A hollow right circular cone has height 18cm and base radius 12cm. It is held vertex downwards beneath a tap leaking at the rate of 2cm^3s^-1.
Find the rate of rise of water level when the depth is 6cm."

:biggrin:

Tbh i think i'm fine with connected rates of change, just some questions like the above catch me out :confused:

Okay, so which part of it are you actually stuck on?

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Reply 189

Original post by MathsNerd1

Okay, so which part of it are you actually stuck on?

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For some reason i just can't seem to form the differential equation :tongue:

Reply 190

Original post by ACBLISS

For some reason i just can't seem to form the differential equation :tongue:

Hmm, I seem to be struggling too, have you made a diagram?

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Reply 191

Original post by MathsNerd1

Hmm, I seem to be struggling too, have you made a diagram?

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Nope

Reply 192

Original post by ACBLISS

Nope

Try making one? I seem to have 2 different pieces of information although I'm not quite sure what to put at the beginning, do you?

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Reply 193

Zazuwaved

10

Watching this thread

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Reply 194

Original post by MathsNerd1

Try making one? I seem to have 2 different pieces of information although I'm not quite sure what to put at the beginning, do you?

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I thought i did but then i got lost :tongue:

Reply 195

Original post by Zazuwaved

Watching this thread

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C3 or C4?

Reply 196

Original post by ACBLISS

I thought i did but then i got lost :tongue:

Well can you work out the volume of the cylinder? And then it already tells you at what speed it increases, I'm just not sure what the first part of the differential equation may be :-/

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Reply 197

Original post by MathsNerd1

Well can you work out the volume of the cylinder? And then it already tells you at what speed it increases, I'm just not sure what the first part of the differential equation may be :-/

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The equation is what i'm stuck on lol

Reply 198

Joshmeid

5

Original post by otrivine

No its not, check again :confused:

Yes it's correct, fairly standard question.

Reply 199