IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: Saladin on May 04, 2010, 12:46:35 pm

Title: FP1 DOUBTS HERE!!!!
Post by: Saladin on May 04, 2010, 12:46:35 pm: Hey, I do Edexcel FP1, please post all your doubts here!
Title: Re: FP1 DOUBTS HERE!!!!
Post by: raimunts on May 17, 2010, 07:15:56 pm: No posts eh? Not surprising given the exam takes place so late. Do u have any notes about/ or can u explain PROOF BY INDUCTION? Thanx...and what exactly will be required from the matrix chapter...only addition, mulitplication and inverse, ryt? NO transformations?
Title: Re: FP1 DOUBTS HERE!!!!
Post by: astarmathsandphysics on May 17, 2010, 09:34:52 pm: proof by induction

http://www.astarmathsandphysics.com/a_level_maths_notes/FP1/a_level_maths_notes_fp1_proof_by_induction.html
Title: Re: FP1 DOUBTS HERE!!!!
Post by: Hwa1 on June 12, 2010, 09:46:17 pm: FP1 June 05 Q7b
I think that particular topic is now on the FP2 syllabus but anyway...

I got A+B=1 but I dunno what to do with dx/dt = -1 :(
Help please
Title: Re: FP1 DOUBTS HERE!!!!
Post by: Saladin on June 12, 2010, 10:10:09 pm: Quote from: Hwa1 on June 12, 2010, 09:46:17 pm
FP1 June 05 Q7b
I think that particular topic is now on the FP2 syllabus but anyway...

I got A+B=1 but I dunno what to do with dx/dt = -1 :(
Help please

Well, yeah I mean anything behind 2009 is supposed to be obsolete.
Title: Re: FP1 DOUBTS HERE!!!!
Post by: astarmathsandphysics on June 12, 2010, 10:36:07 pm: its in the ms
Title: Re: FP1 DOUBTS HERE!!!!
Post by: Hwa1 on June 12, 2010, 11:07:19 pm: Just stupidity on my part, worked it out and it was pretty easy...I looked at the ms before but didn't get what it was doing, all is well now though :)
Just for part C, it's clear that you have to differentiate because it asked for a minimum value :P But I don't see why you'd actually do it in the first place =/ (What's the theory behind it?)
Thanks in advance
Title: Re: FP1 DOUBTS HERE!!!!
Post by: astarmathsandphysics on June 12, 2010, 11:10:30 pm: as soon as you find x(t) differentiate to find a minimum in the usual way
Title: Re: FP1 DOUBTS HERE!!!!
Post by: Hwa1 on June 13, 2010, 10:36:59 am: I understand what to do but I don't know why.
Doesnt differentiating have stuff to do with gradients and things rather than distances?
Title: Re: FP1 DOUBTS HERE!!!!
Post by: astarmathsandphysics on June 13, 2010, 11:43:04 am: Differentiate whenever you want to find a max or min
Title: FP1 DOUBTS HERE!
Post by: Saladin on June 18, 2010, 11:45:43 am: IF ANYONE HAS FP1 DOUBTS, please post them here, and I will do my best to answer them.
Title: Re: FP1 DOUBTS HERE!
Post by: Alpha on June 18, 2010, 03:04:24 pm: It's good to bring the river to those feeling thirsty. Nice initiative.
Title: Re: FP1 DOUBTS HERE!
Post by: Saladin on June 18, 2010, 07:20:38 pm: Quote from: ~Alpha on June 18, 2010, 03:04:24 pm
It's good to bring the river to those feeling thirsty. Nice initiative.

I bring no river, but a stream.
Title: Re: FP1 DOUBTS HERE!
Post by: Alpha on June 19, 2010, 11:11:07 am: Quote from: Engraved on June 18, 2010, 07:20:38 pm
I bring no river, but a stream.

It's good to bring water to those who are thirsty*. :P
Title: Re: FP1 DOUBTS HERE!
Post by: Hwa1 on June 20, 2010, 03:57:45 pm: Theres a specimen paper I need the markscheme for but I can't seem to find it ANYWHERE :(
I dunno how to explain which one it is...It says 2003 at the bottom and here are some slight descriptions of the questions.
Its for FP1 by the way (but most questions are FP2)

1.sigma notation Q
2. has a lnx in it and part b is newton raphson procedure
3. inequalities Q
4. roots of a cubic equation. find P
5. about a bank

I'd really appreciate it if anybody could find the markscheme, thanks :)
Title: Re: FP1 DOUBTS HERE!
Post by: Saladin on June 20, 2010, 05:24:23 pm: Quote from: Hwa1 on June 20, 2010, 03:57:45 pm
Theres a specimen paper I need the markscheme for but I can't seem to find it ANYWHERE :(
I dunno how to explain which one it is...It says 2003 at the bottom and here are some slight descriptions of the questions.
Its for FP1 by the way (but most questions are FP2)

1.sigma notation Q
2. has a lnx in it and part b is newton raphson procedure
3. inequalities Q
4. roots of a cubic equation. find P
5. about a bank

I'd really appreciate it if anybody could find the markscheme, thanks :)

This is not in the spec, so do not worry.
Title: Re: FP1 DOUBTS HERE!
Post by: Hwa1 on June 20, 2010, 05:48:52 pm: nah i meant like i did a 'specimen' paper (thats wat it said on it lol) and i want to mark it but dont have a markscheme =/
Title: Re: FP1 DOUBTS HERE!!!!
Post by: elemis on January 09, 2011, 01:18:57 pm: Just to re-iterate. I do Further Pure Mathematics and can help you guys out too.

EDIT : Iterate... re-iterate... get the joke ? :P
Title: Re: FP1 DOUBTS HERE!!!!
Post by: astarmathsandphysics on January 09, 2011, 10:45:40 pm: reitteratingly
Title: Re: FP1 DOUBTS HERE!!!!
Post by: elemis on January 10, 2011, 03:35:10 am: Quote from: astarmathsandphysics on January 09, 2011, 10:45:40 pm
reitteratingly

Good :D
Title: Re: FP1 DOUBTS HERE!!!!
Post by: aloha32 on February 21, 2011, 03:16:22 pm: Hi
Does anyone know what geometrical effects we might get with the operation of dividing and multiplying two complex numbers?
Title: Re: FP1 DOUBTS HERE!!!!
Post by: elemis on February 21, 2011, 03:19:31 pm: Quote from: aloha32 on February 21, 2011, 03:16:22 pm
Hi
Does anyone know what geometrical effects we might get with the operation of dividing and multiplying two complex numbers?

What do you mean by geometrical effects ?

Argand Diagrams ?
Title: Re: FP1 DOUBTS HERE!!!!
Post by: BlacKHawK on December 06, 2012, 02:48:35 am: Argand diagram is a plot of complex numbers in the form x+iy. Where x component is realk and y component is imaginary.