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    (Original post by DomBailey98)
    For the question where you have to show the exact values of tan(A-B), what were the 2 equations given at the start? I remember one as sec^2(A) - tanA = 13 but I can't remember the equation with B.
    sinBsec^2B=27cosBcosec^2B?
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    is the new equation x(-2x+5) and -cos*-1(-x)?
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    (Original post by shhenry96)
    did we forgot to times it by 4?lol
    I reckon something to do with cubed bit, and a 2, cos 2 cubed = 8 so if we had an 8 instead of a 2 it would have been 4x8 instead of 4x2
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    (Original post by AlfieH)
    4 - you had to write the equations of the curves after reflections in both axes.

    What were those answers???
    Fixed now
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    (Original post by daniellon)
    is the new equation x(-2x+5) and -cos*-1(-x)?
    I got y=-x(5-2x)
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    (Original post by daniellon)
    is the new equation x(-2x+5) and -cos*-1(-x)?

    yes
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    (Original post by connorbarr)
    I got y=-x(5-2x)
    No sorry i got y=x(5-2x)
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    (Original post by connorbarr)
    No sorry i got y=x(5-2x)
    So yes loool
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    (Original post by connorbarr)
    I got y=-x(5-2x)
    One reflection is on the x axis and another one is on the y axis
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    Unofficial markscheme anybody?
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    (Original post by Mathematicus65)
    All seem perfect - how many marks was 7b)
    I think I had the same values for a and b but the other way round
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    (Original post by rich1334)
    My solutions, in order:Y=12x+15
    4x-4lnx-1/x+c
    3/16(4x+1)^4/3 + c
    128, 81.92
    31 hours
    1/13, 3/4
    Show ln2
    5/2
    A=6, B=5
    Graph
    Root 0.242
    Graph transformations
    Ranges: all real, greater or equal to 4a, modulus has no inverse
    Inverse: 1/5(x+4a)
    X=1.5a, x=-2.5a
    Show equiv to 2
    4+2root2
    0.659
    32sin(x)
    No guarantee these are right but I'm pretty confident
    I got all but 81.92 part.

    I got 65.5.. and thus 66.
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    for the question where you find area under curve of e lines I got like 24-3/2 as for logs you put the number in front of the logs as the power ?????
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    (Original post by Ligand)
    People are saying they got pi/6 for 9ii but I got 0.6.. something. Anyone else?
    I'm pretty sure I did too



    Posted from TSR Mobile
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    Unofficial mark scheme HERE: https://docs.google.com/document/d/1...it?usp=sharing
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    For the one about modulus, I only got 1 answer as x = 1.5a because when you draw the graphs they only intersect once - did anyone else get that?
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    What grade do you reckon 62 marks will be?
    • Thread Starter
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    (Original post by M12345689)
    What grade do you reckon 62 marks will be?
    Low 90s??
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    (Original post by TheNicholas)
    Low 90s??
    Thanks do you reckon it will scrape an A* haha
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    Grade boundaries anyone?
    Going to guess:
    41 - C
    47 - B
    53 - A
    59 - A*
    Really difficult paper imo.
 
 
 
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