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    (Original post by Kvothe the arcane)
    Thanks Ayman!.

    I guess it now (though not directly).

    I guess I'll use a temporary sub to make it easier to see. I asked because it was in 2014(R) Q 8.
    I think something similar came up in our paper last year.
    I might be mistaken.
    Think of it as chain rule.


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    does anyone know where i can find fp2 adapted papers like this one? https://8dedc505ac3fba908c50836f5905...%20Edexcel.pdf

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    (Original post by Katiee224)
    does anyone know where i can find fp2 adapted papers like this one? https://8dedc505ac3fba908c50836f5905...%20Edexcel.pdf

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    For part b, they say to solve for -pi < theta < pi, but the answers given go above that boundary. Are these answers correct or are they unnecessary? If so, how many marks would you lose for answers above the boundary?
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    (Original post by Pyslocke)
    For part b, they say to solve for -pi < theta < pi, but the answers given go above that boundary. Are these answers correct or are they unnecessary? If so, how many marks would you lose for answers above the boundary?
    They are all correct and necessary but yes in the wrong range, the answerers have just been a bit lackadaisical
    Maybe 1 mark lost..might even be 0
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    Anyone able to show the second differential? I am absolutely lost..

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    How do you solve these questions:
    1. Find the value of z which satisfies both |z+2| = |2z-1| and arg z = pi/4
    2. Given that |z+1-i| = 1, find the greatest and least values of |z-1|
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    Few more questions which I cant solve

    The wording for these type of questions really confuses me.
    1. The transformation T from the zplane where z=x+iy to the w plane is given by w = (1/z+i)
    a. Show that the image under T of the real axis in the z plane is a circle C in the w plane. Find the equation of the circle.
    b. Show that the image under T of the line x= 4 in the z plane is a circle K in the w plane. Find the equation of the circle.
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    (Original post by fpmaniac)
    How do you solve these questions:
    1. Find the value of z which satisfies both |z+2| = |2z-1| and arg z = pi/4
    2. Given that |z+1-i| = 1, find the greatest and least values of |z-1|
    note that argz = pi/4 implies y = x and y and x are both positive
    second one tbh I was always bad at this but the key is to draw a diagram and use your intuition (or, perhaps, knowledge, I only ever had the intuition but you might'n't..) about circles
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    (Original post by wr123)
    Anyone able to show the second differential? I am absolutely lost..

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    I hope this is clear enough.

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    (Original post by Seytonic)
    I hope this is clear enough.

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    You saviour!! Thank you
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    (Original post by 13 1 20 8 42)
    note that argz = pi/4 implies y = x and y and x are both positive
    second one tbh I was always bad at this but the key is to draw a diagram and use your intuition (or, perhaps, knowledge, I only ever had the intuition but you might'n't..) about circles
    for the second one, I can find the minimum and maximum from |z|, which is from the point (0,0) so would the min/max from |z-1| be from (1,0).
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    (Original post by jtt1998)
    Hi, does anybody have a link to the January 2016 IAL paper and mark scheme??
    Sorry if this has already been posted, I can't find it anywhere!
    Because it doesn't exist. There are no January papers for FP2.
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    (Original post by fpmaniac)
    Few more questions which I cant solve

    The wording for these type of questions really confuses me.
    1. The transformation T from the zplane where z=x+iy to the w plane is given by w = (1/z+i)
    a. Show that the image under T of the real axis in the z plane is a circle C in the w plane. Find the equation of the circle.
    The real axis is y=0
    You can express z in terms of u and iv and equate imaginary coefficients noting that y=0
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    (Original post by Kvothe the arcane)
    The real axis is y=0
    You can express z in terms of u and iv and equate imaginary coefficients noting that y=0
    Thanks
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    Can we use the R papers?

    Do they have the same spec?
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    (Original post by Louisb19)
    Can we use the R papers?

    Do they have the same spec?
    Yes.
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    (Original post by fpmaniac)
    How do you solve these questions:
    1. Find the value of z which satisfies both |z+2| = |2z-1| and arg z = pi/4
    2. Given that |z+1-i| = 1, find the greatest and least values of |z-1|
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    Thanksa lot
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    Sorry its a bit rough, feel free to ask any questions.
    (Original post by fpmaniac)
    Thanksa lot
 
 
 
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