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Edexcel A2 C4 Mathematics June 2015 - Official Thread

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Reply 2340

HItchslapped

Original post by IHateC12k14paper

Please stop spamming, thanks.

Here's the poll guys: http://strawpoll.me/4648207/r

It's a public forum, anyone has the right to post what they want.

Reply 2341

username1200599

Original post by milogillot

no k=2 since you had to square root 4cos^2

It was 4. you multiplied by 2cos(theta) so it was 2cos(theta) * 2cos(theta)

Reply 2342

Neilg99

What was p/q fr the 1st q?

Reply 2343

HItchslapped

VOTE NOW ON HOW YOU FOUND THIS EXAM!

Click here: http://www.thestudentroom.co.uk/show....php?t=3407487

Note: C4 JUNE 2015 UK paper ONLY!

.

Reply 2344

cfcdrog

For Q6 b) was it 4pi/3 + 2root3/4

Reply 2345

anndz3007

Did anyone got 3199/ln9 in the last question :'(

Reply 2346

Ripper Phoenix

lol easier? i'm getting out of this world

Reply 2347

Elolel

Original post by jf1994

I used the sine rule, anyone else?

I used the Sin i fould the foot of the perpendicular which i guess was the shortest distance

Reply 2348

ninetail9990

Original post by Iridann

It was 4. you multiplied by 2cos(theta) so it was 2cos(theta) * 2cos(theta)

its 2. while mutiplying 4 and 4 cancel out

Reply 2349

Jasmine:))))

Original post by cfcdrog

For Q6 b) was it 4pi/3 + 2root3/4

that's right

Reply 2350

username1200599

Original post by anndz3007

Did anyone got 3199/ln9 in the last question :'(

Nah it was 13pi/ln3

Reply 2351

jf1994

Poll vs poll - who really gives a ****?

Reply 2352

Jasmine:))))

Original post by ninetail9990

its 2. while mutiplying 4 and 4 cancel out

should be 4
d(x)=2cos(theta) d(theta)
and y=2cos(theta)

Reply 2353

Elolel

Original post by Ripper Phoenix

lol easier? i'm getting out of this world

It was hard wasnt it? I have never seen a ques like the last one in any paper :frown:

Reply 2354

IHateC12k14paper

Original post by jf1994

Poll vs poll - who really gives a ****?

I agree. Stupid spammers.

Reply 2355

Redsoxfan31

Original post by anndz3007

Did anyone got 3199/ln9 in the last question :'(

YES ! I DID!

Spoiler

Reply 2356

MrBowcat

Original post by anorris13

It is calculus, it has to be in radians

No it doesn't. If anything, that particular question had to be answered in degrees. However, they may except both.

Reply 2357

anndz3007

Original post by Iridann

Nah it was 13pi/ln3

How you intergrade 9^2x, i put u= 9^x

Reply 2358

blueynuey1

Please vote:

http://strawpoll.me/4648207

Reply 2359

username1200599

Original post by ninetail9990

its 2. while mutiplying 4 and 4 cancel out

What are you on about? dx = 2cos(theta)d(theta)

So it was root( 4cos^2(theta)) * 2cos(theta)

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