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    (Original post by gagafacea1)
    I hope so



    btw this is the updated "paper"
    I hope it is an improvement because after 30 minutes on it I am failing miserably
    (second part of course)

    I have to go to eat I think and hope Gome44's question did not kill me for the day.
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    (Original post by TeeEm)
    I hope it is an improvement because after 30 minutes on it I am failing miserably
    (second part of course)

    I have to go to eat I think and hope Gome44's question did not kill me for the day.
    Really? Oh my god, I thought it was obvious, well not very obvious but not that hard. Oh then don't even bother with the updated version. I'll try to put more steps in. Sorry.
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    (Original post by TeeEm)
    I hope it is an improvement because after 30 minutes on it I am failing miserably
    (second part of course)

    I have to go to eat I think and hope Gome44's question did not kill me for the day.
    Bro second part is easy?
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    (Original post by Gome44)
    Bro second part is easy?
    Are you saying it's easy? Or what?
    Also this is the new file with an extension question with more hints:
    Attached Images
  1. File Type: pdf GeneiRyodan.pdf (56.4 KB, 72 views)
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    (Original post by gagafacea1)
    Are you saying it's easy? Or what?
    Also this is the new file with an extension question with more hints:
    Yeah, it's easy given the hint of try q=f(x)tan(x)

    Just find q'', replace the tan(x)'s by q/f(x) and compare coefficients of q. No idea about
    the extension though
    Spoiler:
    Show
    q=tan(x)e^x + Ax + B?
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    (Original post by Gome44)
    Yeah, it's easy given the hint of try q=f(x)tan(x)

    Just find q'', replace the tan(x)'s by q/f(x) and compare coefficients of q. No idea about
    the extension though
    Spoiler:
    Show
    q=tan(x)e^x + Ax + B?
    That should be right, though the problem is that I feel like if A or B does not equal to 0 then the equation won't work out. I'm too lazy to check it tbh.
    I'll give you a hint for the second one
    Spoiler:
    Show
    In the first two parts, put the derivatives in terms of the original equations by using trig identities, don't do that (don't use trig ids) for the extension.
    Oh and I was doing your question, I ended up with an ugly integral in terms of y, is that intended? Or did I probably do something wrong?
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    (Original post by gagafacea1)
    That should be right, though the problem is that I feel like if A or B does not equal to 0 then the equation won't work out. I'm too lazy to check it tbh.
    I'll give you a hint for the second one
    Spoiler:
    Show
    In the first two parts, put the derivatives in terms of the original equations by using trig identities, don't do that (don't use trig ids) for the extension.
    Oh and I was doing your question, I ended up with an ugly integral in terms of y, is that intended? Or did I probably do something wrong?
    Ax +B =0 when differentiated twice

    Is the extension asking you to solve for θ and σ? It says they are functions of t, is this a variable t or tan(x)?

    Every integral you get in my question is ugly
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    (Original post by Gome44)
    Ax +B =0 when differentiated twice

    Is the extension asking you to solve for θ and σ? It says they are functions of t, is this a variable t or tan(x)?

    Every integral you get in my question is ugly
    Yes but if you then substitute q into the e^x(2q bla bla bla) the Ax+B will affect the answer, ie how would they cancel out?

    It's asking you to solve for theta AND sigma (simultaneous equations), and t is just a variable, tau is tan(x).
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    (Original post by gagafacea1)
    Yes but if you then substitute q into the e^x(2q bla bla bla) the Ax+B will affect the answer, ie how would they cancel out?

    It's asking you to solve for theta AND sigma (simultaneous equations), and t is just a variable, tau is tan(x).
    Yep, just tried it, you are correct
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    (Original post by gagafacea1)
    Yes but if you then substitute q into the e^x(2q bla bla bla) the Ax+B will affect the answer, ie how would they cancel out?

    It's asking you to solve for theta AND sigma (simultaneous equations), and t is just a variable, tau is tan(x).
    I'll have a go at the extension tomorrow, it doesn't look very pleasant though
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    (Original post by Gome44)
    I'll have a go at the extension tomorrow, it doesn't look very pleasant though
    lol but please don't feel obligated to, do it only if you want to.
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    (Original post by gagafacea1)
    lol but please don't feel obligated to, do it only if you want to.
    I've got nothing better to do tomorrow

    Besides, I've got to keep my brain fresh with maths
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    (Original post by Gome44)
    I've got nothing better to do tomorrow

    Besides, I've got to keep my brain fresh with maths
    I think a good idea would be to get Schaum's outline of Calculus. It's an exercises book. You can get it for a pound here, though it's the older edition and used, I think it's just as good. Or if you have the money, you can get the new edition for 11 I think. Though a used one would be fine since no writing should be on the book.

    http://www.waterstonesmarketplace.co...53?matches=108

    This site was recommended by TeeEm btw.
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    29 days to A level results

    Question for Wednesday 14/07/15
    Further Maths Upwards




    and for those who want that little bit extra
    ....
    I might not provide solution for this one so feel free to attach yours.

    And the one I stole from Gome44 this afternoon (excellent)
    It will appear in about a week in a new file in my site
    Attached Images
  2. File Type: pdf Q16, Wednesday 15-07-15.pdf (13.1 KB, 46 views)
  3. File Type: pdf Q16, Wednesday 15-07-15, EXTRA.pdf (11.8 KB, 73 views)
  4. File Type: pdf Gome44's HARD ODE, solution.pdf (385.7 KB, 91 views)
  5. File Type: pdf Q16, Wednesday 15-07-15, solution.pdf (49.4 KB, 66 views)
  6. File Type: pdf Q16, Wednesday 15-07-15, EXTRA, solution.pdf (320.6 KB, 108 views)
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    (Original post by gagafacea1)
    I think a good idea would be to get Schaum's outline of Calculus. It's an exercises book. You can get it for a pound here, though it's the older edition and used, I think it's just as good. Or if you have the money, you can get the new edition for 11 I think. Though a used one would be fine since no writing should be on the book.

    http://www.waterstonesmarketplace.co...53?matches=108

    This site was recommended by TeeEm btw.
    Looks good, maybe I'll get it when I finish my analysis book, which is all questions as well (this one: http://www.amazon.co.uk/dp/110744453...55ANXHRANZ1TX3)
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    (Original post by Gome44)
    Looks good, maybe I'll get it when I finish my analysis book, which is all questions as well (this one: http://www.amazon.co.uk/dp/110744453...55ANXHRANZ1TX3)
    Oh then nevermind, you don't need it. Though I guess it gives you a more A levelly perspective and questions, by that I mean more standard questions. But your book looks nice, I might have to get it.
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    28 days to A level results

    Question for Thursday 16/07/15
    AS Maths Upwards




    and for those who want that little bit extra
    ....
    I might not provide solution for this one so feel free to attach yours.


    EDIT: vital bit was missing from the "normal" question... SORRY
    Attached Images
  7. File Type: pdf Q17, Thursday 16-07-15, solution.pdf (141.3 KB, 66 views)
  8. File Type: pdf Q17,Thursday 16-07-15, EXTRA, solution.pdf (209.3 KB, 73 views)
  9. File Type: pdf Q17, Thursday 16-07-15.pdf (11.1 KB, 93 views)
  10. File Type: pdf Q17,Thursday 15-07-15, EXTRA.pdf (16.3 KB, 102 views)
  11. File Type: pdf Q17, Thursday 16-07-15, CORRECTED.pdf (12.9 KB, 72 views)
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    (Original post by TeeEm)
    28 days to A level results

    Question for Thursday 16/07/15
    AS Maths Upwards




    and for those who want that little bit extra
    ....
    I might not provide solution for this one so feel free to attach yours.
    in the normal Q the 'X' is multiply/times right?
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    (Original post by Gilo98)
    in the normal Q the 'X' is multiply/times right?
    it is
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    (Original post by TeeEm)
    it is
    do 15 and 6 share a common power? on reflection that is perhaps a useless question....
 
 
 
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