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Edexcel A2 C3 Mathematics 12th June 2015

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Reply 2460

manlikem

How the exam was? Let me tell you..
Halfway through that exam I checked the front to make sure it was actually c3.

Reply 2461

DoctorDren

Got that as well

Original post by Ohwhenwilson

Can't remember what question it was but was with 2 lines, one was y = 17 -x, did anyone get point A as (3.1,13.9)?

Reply 2462

scales1996

Original post by piercy42

i really hope its still 43 for a B, since then i might actually still have a chance of getting into my uni, but if not then i guess ill just go start a fight or something

Yeah I'd say a B must be between 46-43 marks for this paper... if so that's fair

Reply 2463

dandroff

could anyone do the identity proof ?

Reply 2464

ArtemMakushin

Guys, in the g(x) question about the range of the function, what "x" values did you get for the stationary points?

It seems like I didn't write the answer in terms of e, giving a full answer

Cmoonnnnn Arsey

Guys for the coordinates of A with the question with pie/2, did we have to give the coordinates as exact. I gave it as a decimal.

Reply 2467

Notnek

For the trig identity question that I'm hearing so much about, it's arguably easier to start from the right-hand-side and multiply top and bottom by (cos(A)+sin(A)), similar to how you rationalise fractions with surds.

Reply 2468

Chazley123

Original post by Willis_l96

Isn't an asymptote defined as a point for which the whole graph tends towards but never reaches? y could equal 0?

well it could but at first i thought there was not one but to be safe I went with the 0 because I dont see how it can be 5 when the rest of the function exceeds 5

Reply 2469

dandroff

Original post by Ripper Phoenix

Absolutely increasing function

Posted from TSR Mobile

its decreasing isnt it ? because it goes up but then goes back down ?

Reply 2470

Isymega

Guys why couldn't you do the inverse of the function??!!??

Reply 2471

scales1996

Knew I should've done English... :frown:

Reply 2472

MelonKuma

Original post by ArtemMakushin

Guys, in the g(x) question about the range of the function, what "x" values did you get for the stationary points?

It seems like I didn't write the answer in terms of e, giving a full answer

Pretty sure that x was 2 and 0.5

Reply 2473

Mishy96

Original post by Elolel

I got 3.1 nd 11.9

I got 3.1 and 13.9..

Reply 2474

BFP=big fat poo

right for the range question I had a cubic: 2x^3 - 3x^2 + 3x
x(2x-1)(x-2) (I think)
Anyone else?

(edited 8 years ago)

Reply 2475

Ripper Phoenix

Original post by ArtemMakushin

Guys, in the g(x) question about the range of the function, what "x" values did you get for the stationary points?

It seems like I didn't write the answer in terms of e, giving a full answer