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# Edexcel FP2 Official 2016 Exam Thread - 8th June 2016 watch

1. Hey by any chance do you know where I can find the June 2015 ial paper
I can find the ma but not the paper
2. (Original post by Cpj16)
Hey by any chance do you know where I can find the June 2015 ial paper
I can find the ma but not the paper
3. (Original post by Student403)
OMG I checked this and the only paper he doesn't have it that one!! I even fb messaged him lol
4. (Original post by Cpj16)
Hey by any chance do you know where I can find the June 2015 ial paper
I can find the ma but not the paper
Edexcel website?
5. (Original post by Cpj16)
OMG I checked this and the only paper he doesn't have it that one!! I even fb messaged him lol
Well you didn't look hard enough

I'm looking at the paper right now from his website
6. (Original post by Student403)
Well you didn't look hard enough

I'm looking at the paper right now from his website
7. Question:
In Part (c), how do you sketch the argument function. Why is it not the same as arg(z+1)? Usually arg(z) is a half line, but here it is a full line. I'm sure its the mod, but any explanation would be nice!
TY,
P____P

Spoiler:
Show
8. (Original post by P____P)
Question:
In Part (c), how do you sketch the argument function. Why is it not the same as arg(z+1)? Usually arg(z) is a half line, but here it is a full line. I'm sure its the mod, but any explanation would be nice!
TY,
P____P
Spoiler:
Show
I take it everyone's asleep!
9. When sketching a polar curve do you ignore negative r values?
10. Why do edexcel only put the theta value in their mark schemes for when the question asks for the coordinates? Why not in form (r,theta)
11. See below
12. (Original post by Armpits)
When sketching a polar curve do you ignore negative r values?
Yes, in the edexcel specification
13. (Original post by Nikhilm)
Why do edexcel only put the theta value in their mark schemes for when the question asks for the coordinates? Why not in form (r,theta)
I don't the mark scheme usually award a mark for putting the coordinate in (r, θ) form, but there are marks for calculating both the angle and the radius.
14. (Original post by P____P)
Question:
In Part (c), how do you sketch the argument function. Why is it not the same as arg(z+1)? Usually arg(z) is a half line, but here it is a full line. I'm sure its the mod, but any explanation would be nice!
TY,
P____P
Spoiler:
Show
Which paper is this from?

I've only glanced at it, but because it's a modulus, it can either be positive of negative.

Take this example for instance
|x| = 2. Therefore, x can either be +2 or -2.

In this question, you have to possible cases:
arg (z+1) = pi/2
or
arg (z+1) = -pi/2

Hence you get the full line,
15. How to find the circle centre in part 7b??
Thank youu!!
16. (Original post by P____P)
Question:
In Part (c), how do you sketch the argument function. Why is it not the same as arg(z+1)? Usually arg(z) is a half line, but here it is a full line. I'm sure its the mod, but any explanation would be nice!
TY,
P____P
Spoiler:
Show
My thoughts: a half line at an angle of pi/2 is just a vertical line. We only draw this above or on the real axis, as that's the only place where we can have an angle of pi/2 anticlockwise from the real axis.

Anything below the real axis would be an angle of -pi/2.

However, since it is a modulus, as you quite rightly said, the modulus, that is, the absolute value of the angle, is pi/2. So even points below the real axis (where they'd normally be at an angle of -pi/2) satisfy this.
17. (Original post by Zacken)
Relax, guys. Just chill out, there's nothing more than needs to be done.
If I feel like I'm doing nothing though, which just stresses me out more. I'm gonna have a go with difficult questions in the exercises of the FP2 books (like weird complex number loci questions, polar coordinate graphs and the algebraic stuff). Also going to a revision session today but my teacher would expect me to have done every past paper and everything.
How to find the circle centre in part 7b??
Thank youu!!
Hey, have you been using pure algebra (that is, substituting x+iy at the start) or geometry (alpha-beta=angle, then using circle theorems) to solve these?
19. (Original post by oinkk)
Hey, have you been using pure algebra (that is, substituting x+iy at the start) or geometry (alpha-beta=angle, then using circle theorems) to solve these?
Oh gosh totally 😂 Been up all night, really can't seem to function currently 😝 Thank you though
20. In part (b) how to know where to shade? thanks!
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