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    lollocks!!!!!!

    typo in the question
    the solution is correct but not the question
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    (Original post by TeeEm)
    lollocks!!!!!!

    typo in the question
    the solution is correct but not the question
    So surely if the question is wrong
    Then the solution cannot be correct?




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    (Original post by Mutleybm1996)
    So surely if the question is wrong
    Then the solution cannot be correct?




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    ??
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    (Original post by TeeEm)
    lollocks!!!!!!

    typo in the question
    the solution is correct but not the question
    Will the original even converge? If not I've wasted a lot of time today :lol:
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    (Original post by TeeEm)
    lollocks!!!!!!

    typo in the question
    the solution is correct but not the question
    Pay me 1p per question written to chek it out. Bargain rite ere


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    (Original post by Gilo98)
    Will the original even converge? If not I've wasted a lot of time today :lol:
    time is never wasted...
    you get more out of a question that took 10 hours of work and you have failed to solve it than spending 5 minutes in a question which you managed.
    (Apart from a feel good factor)
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    (Original post by TeeEm)
    time is never wasted...
    you get more out of a question that took 10 hours of work and you have failed to solve it than spending 5 minutes in a question which you managed.
    (Apart from a feel good factor)
    if you say so..it got to a point where I couldn't think of another way to rewrite it in the hope of being able to cancel. Oh well - I didnt read further than the second line of the solution so i can go again tomorrow.
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    (Original post by Gilo98)
    if you say so..it got to a point where I couldn't think of another way to rewrite it in the hope of being able to cancel. Oh well - I didnt read further than the second line of the solution so i can go again tomorrow.
    no worries
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    (Original post by TeeEm)
    20 days to A level results

    Question for Friday 24/07/15
    A Level Maths Upwards


    and for those who want that little bit extra,
    AS level Maths level Upwards required
    Interestingly you can use the same trick as in the extra question to prove that each natural number has a binary representation and it is unique!
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    (Original post by metaltron)
    Interestingly you can use the same trick as in the extra question to prove that each natural number has a binary representation and it is unique!
    Interestingly I do not do pure maths, and I do not quite understand your statement.
    Nevertheless I hope someone else finds this bit of information useful in the study of the subject.
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    (Original post by TeeEm)
    Interestingly I do not do pure maths, and I do not quite understand your statement.
    Nevertheless I hope someone else finds this bit of information useful in the study of the subject.
    Ah fair enough, got a bit over-excited when I realised the same trick was involved; I remember being impressed that you could prove number facts using algebra.
    {For clarification, the statement means that every natural number can be written uniquely as the sum of powers of 2}.
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    (Original post by metaltron)
    Ah fair enough, got a bit over-excited when I realised the same trick was involved; I remember being impressed that you could prove number facts using algebra.
    {For clarification, the statement means that every natural number can be written uniquely as the sum of powers of 2}.
    many thanks.

    (I don't think we are getting notifications at present.)
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    19 days to A level results

    Question for Saturday 25/07/15
    AS Level Maths Upwards


    and for those who want that little bit extra,
    A level Maths level Upwards required
    Attached Images
  1. File Type: pdf Q26, Saturday 25-07-15.pdf (8.5 KB, 48 views)
  2. File Type: pdf Q26, Saturday 25-07-15, EXTRA.pdf (13.9 KB, 65 views)
  3. File Type: pdf Q26, Saturday 25-07-15, solution.pdf (109.2 KB, 55 views)
  4. File Type: pdf Q26, Saturday 25-07-15, EXTRA, solution.pdf (112.8 KB, 46 views)
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    (Original post by TeeEm)
    19 days to A level results

    Question for Saturday 25/07/15
    AS Level Maths Upwards


    and for those who want that little bit extra,
    A level Maths level Upwards required
    Normal was interesting, I think i got there in the end...I wouldn't even know where to start with the DE though....
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    (Original post by Gilo98)
    Normal was interesting, I think i got there in the end...I wouldn't even know where to start with the DE though....
    I hope you got it right
    I think the series is 6.

    it is not a differential equation as such, since it is satisfied for all f(x)
    (it is a differential identity)
    it is the equivalent statement to dy/dx = 1/(dx/dy) but for second derivatives.


    PS: I have made loads of product operator questions but I thought I give them a day off
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    (Original post by TeeEm)
    I hope you got it right
    I think the series is 6.

    it is not a differential equation as such, since it is satisfied for all f(x)
    (it is a differential identity)
    it is the equivalent statement to dy/dx = 1/(dx/dy) but for second derivatives.


    PS: I have made loads of product operator questions but I thought I give them a day off
    I got 6, and Wolfram Alpha agrees. Very satisfying - series are my weakest.
    I'll take another look...

    Good call, I've seen more of that product operator symbol in the last 2 days then I have in all my life.
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    (Original post by TeeEm)
    I hope you got it right
    I think the series is 6.

    it is not a differential equation as such, since it is satisfied for all f(x)
    (it is a differential identity)
    it is the equivalent statement to dy/dx = 1/(dx/dy) but for second derivatives.


    PS: I have made loads of product operator questions but I thought I give them a day off
    I agree on six, as does my calculator. I have a feeling that I may have overcomplicated a tad (used knowledge way beyond AS).

    The differential question looks intriguing. One for tomorrow morning.

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    (Original post by Krollo)
    I agree on six, as does my calculator. I have a feeling that I may have overcomplicated a tad (used knowledge way beyond AS).

    The differential question looks intriguing. One for tomorrow morning.

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    The series is just an extension of the geometric summation formula proof.

    The differentiation result is a beauty.
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    (Original post by Gilo98)
    I got 6, and Wolfram Alpha agrees. Very satisfying - series are my weakest.
    I'll take another look...

    Good call, I've seen more of that product operator symbol in the last 2 days then I have in all my life.
    then tomorrow back to products....
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    hey guys, any idea on s3 grade boundaries? i think everyone agrees its the hardest paper by far but teeEm any idea on the A* boundary?
 
 
 
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