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Edexcel A2 C3 Mathematics 12th June 2015

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It isn't on the syllabus, but that's a very nice question. (I assume you're meant to consider the parity of the factors?)

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absolutely no idea, it's elmwood H so you could check the mark scheme

Reply 541

Viggi

Original post by Guitardude165

Using Log rules (power one specifically) raise the 1/2 up to the 9 which becomes √9 (using indice laws) and therefore that becones 3. So e^1/2ln9 = e^ln3

Oh yeah... thanks!! :smile:

Reply 542

studentwiz

Original post by samb1234

What's the rsinalpha form?

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2root5(3thetha-1.107)

Reply 543

samb1234

Original post by studentwiz

2root5(3thetha-1.107)

Sorry I'm on my phone right now so I can't easily see what you've done I'll have a look tomorrow

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Reply 544

scriberg

Original post by Krollo

It isn't on the syllabus, but that's a very nice question. (I assume you're meant to consider the parity of the factors?)

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i checked the ms for that paper and its not even answering the question :s-smilie:

the paper is Elmwood H if anyone's wondering

Reply 545

Ripper Phoenix

Original post by scriberg

i checked the ms for that paper and its not even answering the question :s-smilie:

the paper is Elmwood H if anyone's wondering

Original post by broconomist

absolutely no idea, it's elmwood H so you could check the mark scheme

THATS NO LONGER ON EDEXCEL SYLLABUS :biggrin:

My teacher confirmed with edexcel

Reply 546

broconomist

Original post by Ripper Phoenix

THATS NO LONGER ON EDEXCEL SYLLABUS :biggrin:

My teacher confirmed with edexcel

you life saver! thank you

Reply 547

LukeTownsend123

TO ANYONE WANTING PAST PAPER QUESTIONS, EASILY ACCESSIBLE, DOWNLOAD CORE 3 REVISION (EDEXCEL) https://www.tes.co.uk/MyPublicProfil...eTab=resources

Reply 548

studentwiz

how do you complete part c?

I did 11=a l 0-b l -1 but got b to =12 ?

part c sdaf.PNG53.8KB

Reply 549

Guitardude165

Original post by studentwiz

how do you complete part c?

I did 11=a l 0-b l -1 but got b to =12 ?

Hope this helps :smile:

Reply 550

studentwiz

Original post by Guitardude165

Hope this helps :smile:

thanks

what about a im not getting the right answer why is it 2

(edited 8 years ago)

Reply 551

Supergirlxxxxxx

With the binomial shown in my notes, which validity would I choose? Because you work out the validity of both expansions but overall have to choose one, how do I work out which one it is? ImageUploadedByStudent Room1432383258.075676.jpg

ImageUploadedByStudent Room1432383258.075676.jpg

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Reply 552

Guitardude165

Original post by studentwiz

thanks

what about a im not getting the right answer why is it 2

Basically to find a, you first work out the gradient of the modulus part of the function which is -2, but since f(x) refers to the graph as a whole you have tonuse the normal gradient so its just 2. Im not entirely sure why but it works!

Reply 553

studentwiz

Original post by Guitardude165

Basically to find a, you first work out the gradient of the modulus part of the function which is -2, but since f(x) refers to the graph as a whole you have ton use the normal gradient so its just 2. Im not entirely sure why but it works!

but isn't the gradient of the normal of -2 , 1/2?

Reply 554

Guitardude165

Original post by studentwiz

but isn't the gradient of the normal of -2 , 1/2?

I didnt mean normal as in the normal to a curve, i just meant the part of the line which isnt the modulus part. Also the lines arent perpendicular to each other. Its just the reverse.

Reply 555

Medicjug

Can someone help me with part c? I'll post the Pic in a second

Reply 556

Medicjug

ImageUploadedByStudent Room1432385985.620891.jpg

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Reply 557

studentwiz

Original post by Guitardude165

I didnt mean normal as in the normal to a curve, i just meant the part of the line which isnt the modulus part. Also the lines arent perpendicular to each other. Its just the reverse.

oh right, yeah thanks ! :smile:

Reply 558

JaySP

Anyone know 100 ums boundary for June 2013? I think Arsey's is wrong on the reaource thread and Edexcel dont tell you on there grade boundariea section.

Reply 559

aersh8

Original post by JaySP

Anyone know 100 ums boundary for June 2013? I think Arsey's is wrong on the reaource thread and Edexcel dont tell you on there grade boundariea section.