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Edexcel AS Mathematics C2- 25th May 2016 Thread

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Reply 420

NerdyDude

What did everyone get for the logs question the second part?

Reply 421

SirHotWings

I got -1/4 but didn't that get a negative angle or something, I struggled with that a bit.

Reply 422

Vlad Murzakov

People are saying they got 120 for the perimeter.. Was it not 17?

Reply 423

SirHotWings

Original post by Vlad Murzakov

People are saying they got 120 for the perimeter.. Was it not 17?

I've heard people saying that got 17 for some value of x, not sure if the perimeter though.

Reply 424

SirHotWings

Original post by Vlad Murzakov

People are saying they got 120 for the perimeter.. Was it not 17?

To see if our x values were similar, when you had to do d^2y/dx^2, did you get 0.4 ish?

Reply 425

Think People

Original post by SirHotWings

I got -1/4 but didn't that get a negative angle or something, I struggled with that a bit.

Ikr ! I got -1/4 inverse sign that i get a negative angle. Confused on that , but ill get marks for the working out.

Posted from TSR Mobile

Reply 426

SirHotWings

Original post by Think People

Ikr ! I got -1/4 inverse sign that i get a negative angle. Confused on that , but ill get marks for the working out.

Posted from TSR Mobile

I think what you have to do is, if you used a CAST diagram then you go backwards in a sense I believe.

Reply 427

Mackiemcmasher

I got k as -7/2 when it is 7/2. Is this zero marks?

Reply 428

SirHotWings

Original post by Mackiemcmasher

I got k as -7/2 when it is 7/2. Is this zero marks?

I can't remember how many marks that question was worth, you'll lose accuracy if there was any but the method marks are yours I believe.

Reply 429

ollyhermann

perimiter 120, x was 17

Reply 430

Mackiemcmasher

Original post by SirHotWings

I can't remember how many marks that question was worth, you'll lose accuracy if there was any but the method marks are yours I believe.

It was 2 marks so I probably got one then.

Reply 431

SirHotWings

Original post by ollyhermann

perimiter 120, x was 17

I think I got 16.something, then I subbed it back into the P formula to get the minimum value of P, that sound about right?

Reply 432

TeeEm

Please come and vote in this thread
http://www.thestudentroom.co.uk/showthread.php?t=4117033

Reply 433

SirHotWings

Original post by Mackiemcmasher

It was 2 marks so I probably got one then.

Alright then, you did better than me then as I couldn't figure out k lol, with the time I had left I couldn't figure out what I had to do.

-2.1 or something

Original post by not_lucas1

3x-5y-95=0 I got this and i think it's correct, seen quite a few people post it

Quite sure it's 3x+5y-95 not 3x-5y

Reply 436

Mackiemcmasher

Original post by SirHotWings

Alright then, you did better than me then as I couldn't figure out k lol, with the time I had left I couldn't figure out what I had to do.

Yeah I left till the end as well, it wasn't easy, only problem is the fact there was a question depending on the answer of k so I lost another two marks so in total 3 marks by accidentally writing a minus sign.

Reply 437

Msteehee

Original post by elishx__h

The remainder was 5

I agree my friend. I support you.

#friendsforlife
#banter

Reply 438

SirHotWings

Original post by Mackiemcmasher

I know what you mean.

My approach was to times every term I got in part 1 by the bracket so you ended up getting 6 terms, but then I didn't manage to solve it for k in the time I had left.