Edexcel FP3 June 2015 - Official Thread

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got like 11.66 but not checked and owing to some of the numbers I obtained I reckon something went wrong early on; think I got the method though..

edit: by the method I mean a method. :redface:

LOL. I actually did make a mistake. -_-' I put a postive in a place where a negative should have been so your answer is prob right XD.

TeeEm, your sub was so much more simplier XD and quicker.

Edit: got 5.57 after correcting my mistake -.-' lol

(edited 8 years ago)

Reply 341

ninjasinpjs

Original post by TeeEm

5 minutes to both my solutions

well if students can do these types of questions, RIP my A*

Reply 342

Boop.

Can someone please explain how to do question 7b on P3 JUNE 2003

P6 - JUN03 - QP.pdf55.4KB

P6 - JUN03 - MS.pdf160.1KB

Reply 343

TeeEm

Original post by ninjasinpjs

well if students can do these types of questions, RIP my A*

you will be given a substitution in the exam and you will only be expected to do the one with the limits (easier)

Reply 344

TeeEm

Original post by Boop.

Can someone please explain how to do question 7b on P3 JUNE 2003

I will try in about 5 minutes if no one else is available

Reply 345

math42

Original post by chemlover12

LOL. I actually did make a mistake. -_-' I put a postive in a place where a negative should have been so your answer is prob right XD.

TeeEm, your sub was so much more simplier XD and quicker.

Lol I just redid it in the same way and now I'm getting 9.41. Perhaps I need some early sleep

Reply 346

rachu

Original post by TeeEm

Any strong FP3ers out there?

Try this integration (without clues) if you are hard enough...
I will write and post solutions after my dinner (about 1 hour)

i got 9.42 (3sf)
what's the answer?

Reply 347

math42

Original post by TeeEm

Perhaps you are right...
in an exam you will be given a substitution

use 2x = -1 + 4 coshθ

Solutions in about 20 minutes

I actually came up with that sub..just don't think I did the rest properly. :colondollar:

edit: getting something around 9.41 now rather than my answer before

Reply 348

rachu

Original post by 1 8 13 20 42

Lol I just redid it in the same way and now I'm getting 9.41. Perhaps I need some early sleep

yes i also got 9.42 (3sf)

Reply 349

TeeEm

Original post by TeeEm

Any strong FP3ers out there?

Try this integration (without clues) if you are hard enough...
I will write and post solutions after my dinner (about 1 hour)

solutions are now attached in post 329

Reply 350

TeeEm

Original post by rachu

yes i also got 9.42 (3sf)

sorry I left it exact

Reply 351

TeeEm

Original post by 1 8 13 20 42

I actually came up with that sub..just don't think I did the rest properly. :colondollar:

edit: getting something around 9.41 now rather than my answer before

my solution is up now so you can check against mine

Reply 352

ninjasinpjs

Original post by TeeEm

my solution is up now so you can check against mine

Hey TeeEm, whats the best way to revise maths?

Reply 353

TeeEm

Original post by Boop.

Can someone please explain how to do question 7b on P3 JUNE 2003

it might be too hard If I try to explain because I do not use standard formulae but I will try if no one else can

Reply 354

rachu

Original post by TeeEm

my solution is up now so you can check against mine

when i converted your exact answer to decimal, i got 9.42 . so my answer is correct. Thank you for posting question :smile:

Reply 355

TeeEm

Original post by ninjasinpjs

Hey TeeEm, whats the best way to revise maths?

start as early as possible worked for me

Reply 356

TeeEm

Original post by rachu

when i converted your exact answer to decimal, i got 9.42 . so my answer is correct. Thank you for posting question :smile:

Excellent!
(still worth looking at both my solutions)

Reply 357

rachu

Original post by TeeEm

Excellent!
(still worth looking at both my solutions)

yes i looked at your method .. i used the same method .. except fewer lines of working since calculator did most of it! what level would you say this question was? on a scale of 1 to 5 ?

Reply 358

math42

Original post by TeeEm

(still worth looking at both my solutions)

When I type it in I get the same expansion I had :smile:

But it'd probably be worth trying to do it exact

Reply 359

TeeEm

Original post by rachu

yes i looked at your method .. i used the same method .. except fewer lines of working since calculator did most of it! what level would you say this question was? on a scale of 1 to 5 ?