Edexcel FP2 June 2015 - Official Thread

thanks! and something like this

http://www.examsolutions.net/a-level-maths-papers/Edexcel/Further-Maths/Further-Maths-FP2/2011-June/questions/q6.gif

like if you had to find the area of the triangle and something else, in cartesian coord systems you'd just do 1/2 base x height or similar, but I'm not sure what you would do in polar. thanks!

You would do the same thing.

1. Work out the area of the sector.

2. Work out the lengths of the sides of the triangle. You do this by using the fact that $x=rcos\theta$ and $y = rsin\theta$, because you have r and theta.

3. Use 1/2 base x height to calculate the area of the triangle

4. Area of R = Area of sector - Area of triangle




Posted from TSR Mobile

Hi guys in the june 2011 paper question 5c you had to keep use the method of w=x+iy . Was just wondering if there was a way of recognizing which method you had to use in a certain question of loci because i used the method to rearrange for z and got the answer wrong. thanks in advance

Hi guys in the june 2011 paper question 5c you had to keep use the method of w=x+iy . Was just wondering if there was a way of recognizing which method you had to use in a certain question of loci because i used the method to rearrange for z and got the answer wrong. thanks in advance

When you have z and you want w, you make z the subject and sub w= u+ iv into your equation (if you choose to do it using the component method).

If you have w and you want z, you keep w as your subject and sub z= x + iy into your equation (if you choose to do it using the component method).


Posted from TSR Mobile

if there's modulus are you always supposed to try and rearrange it, and if it doesn't work then sub x + iy?

Seems like it, but the transformations can get a bit dogdy. Also some of the answers in Ex.3H differ from the ones in the solution bank, like Q14b. I think the book is right

if there's modulus are you always supposed to try and rearrange it, and if it doesn't work then sub x + iy?

are you also doing the questions from the book to revise? or just past papers? there's a lot more questions for the years before 2009 (like about 13 questions per year)

If there's a topic I'm not too good with then I'll qickly work through the exercises, but otherwise I do exam qs from http://www.stgeorges-community.org.uk/images/Fp2_Sample_Questions_V2.pdf + 2009 onwards + practice papers.
Are you ready??

Depends on what you're trying to achieve. If you are given two moduli, then you should sub x + iy in and apply Pythagoras, because it's well faster, but if not, then you can either use the component method or the perpendicular bisector method, depending on which you prefer.


Posted from TSR Mobile

yeah im doing those questions aswell then im gonna move on to June 2009 + onwards past papers, are you finding the older years questions more lengthy btw/complicated (some) like especially when they ask you to draw a graph? (the trig ones)



so in transformations there's basically two methods, but the component method always works? sorry i keep asking silly questions ahah i just get confused sometimes on what to do

yeah im doing those questions aswell then im gonna move on to June 2009 + onwards past papers, are you finding the older years questions more lengthy btw/complicated (some) like especially when they ask you to draw a graph? (the trig ones)

Mod(z) substitution should only be used when the question explicitly tells you some information about the transformation, such as: it's a circle, it's a line or it lies on the real axis.

For the graphs, I just use the table mode on my calc to help me get the shape

for practice paper A, question 1, why have they continued to give values of theta >pi i thought