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    (Original post by duncant)
    i got y=2x-20 and y=2x+10 for tangents of circles
    yes bruv u knowwww bout dat
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    (Original post by AlfieH)
    I got 2^-6 but was worrying cos all I remember from the exam is 2^5 divided by 2^7 which gives ¼ so there must've been something else I can't remember.

    Mathematically speaking should be a 2^-4...
    You're right that it would be 1/4, but the whole thing was ^3, and 4^3 is the same as (2^2)^3, and indice rules say that you multiply the 2 and the 3, hence the 6. So pretty sure it would end up as 2^-6
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    That was impossible!!!!
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    Does anybody remember the question to do with points A and B? It was y=2x^2 and A was h and B was h+5... that's all I remember. There was a proof question to prove the gradient was something?
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    (Original post by Balrajan singh)
    That was impossible!!!!
    Couldn't put it myself . Being getting full marks all year now i just want a C overall, definetely need to step up my game for c2 and s1.
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    Meant to get an A in further maths and I can't even pass C1, mint 👍🏽
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    i got this too but i didnt put r>0 !! do you think this was necessary since it is a length after all
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    (Original post by Balrajan singh)
    That was impossible!!!!
    Couldn't put it myself . Been getting full marks all year now i just want a C overall, definetely need to step up my game for c2 and s1.
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    (Original post by AlfieH)
    Does anybody remember the question to do with points A and B? It was y=2x^2 and A was h and B was h+5... that's all I remember. There was a proof question to prove the gradient was something?
    Yeah, prove the gradient was 20-h I think?

    You had to find y co-ordinates from the equation, A was (5,50) can't remember what B was, then do y1-y2/x1-x2 to get it.
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    How does OCR decide what grade boundaries will be like?
    Any predictions for this years grade boundaries?
    I recon i lost about 15-16 marks, and I need an A so badly!!!
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    does anyone know how much q8 and 10 were out of
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    (Original post by annabannana111)
    i got this too but i didnt put r>0 !! do you think this was necessary since it is a length after all
    yeah i forgot to put r>0 too...
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    (Original post by julesaquilina)
    I got k is less than -2 and greater than 5? And many others got that as well
    I got this one
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    (Original post by liziepie)
    Yeah, prove the gradient was 20-h I think?

    You had to find y co-ordinates from the equation, A was (5,50) can't remember what B was, then do y1-y2/x1-x2 to get it.
    I think I remember now wasn't it prove the gradient was 4h+10 ?

    I did it different by finding the midpoint AB, then plugging that into the dy/dx of 2x^2 which then gave me 4x therefore 4(h+2.5h) which still gave me 4h+10..

    Reckon I'll still get the 3 marks?
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    Can someone make an online Google document thing so we can all input our answers to make the mock MS
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    Can anybody remember the wording of question 10iv which was talking about finding the other tangent? I can't see why it was 2x+10
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    (Original post by AlfieH)
    Does anybody remember the question to do with points A and B? It was y=2x^2 and A was h and B was h+5... that's all I remember. There was a proof question to prove the gradient was something?
    The line equation was y=2x^2, then the x-coordinate of A=5 and the x-coordinate of B=5+h and you had to prove the gradient was 20+2h.

    I think you had to find the midpoint of the x-coordinates and then put that into the dy/dx of the equation.
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    (Original post by KevinGu123456789)
    For the question about the circle being wholly inside the other, did anyone else get 0<r<√45 - 5?
    Most people got 0<r<2, but I thought that this may not be right
    0<r !!
    This one is really tricky
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    (Original post by AlfieH)
    Can anybody remember the wording of question 10iv which was talking about finding the other tangent? I can't see why it was 2x+10
    other tangent to circel parallel to tanget at A, find eq of other tangent
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    (Original post by AlfieH)
    Can anybody remember the wording of question 10iv which was talking about finding the other tangent? I can't see why it was 2x+10
    What did u get liark? Get coordinates of (10,0) for A aye?
 
 
 
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