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    (Original post by a10)
    Hi TeeEm,

    Have you got any good resources on Laplace transforms
    http://www.thestudentroom.co.uk/show....php?t=3330283

    or as a single download

    http://madasmaths.com/archive/maths_...transforms.pdf

    (Original post by a10)
    Hi TeeEm,

    Have you got any good resources on any of these:

    Probability ( rms, density functions and random variables)
    Central limit theorem
    Regression
    Normal distribution
    look at this page, but I am afraid the standards are only A level.

    http://madasmaths.com/archive_maths_...tatistics.html
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    Thank you!

    Ahh, it will be useful just to recap some points because I've forgotten most of stats
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    (Original post by a10)
    Thank you!

    Ahh, it will be useful just to recap some points because I've forgotten most of stats
    By the way I just remembered I added loads of new questions on Laplace Transforms particularly with regards to the Impulse Function (Dirac Function) but my site is out of date. I will let you know when I update the new file.
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    (Original post by TeeEm)
    By the way I just remembered I added loads of new questions on Laplace Transforms particularly with regards to the Impulse Function (Dirac Function) but my site is out of date. I will let you know when I update the new file.
    Yes, that would be very useful!!!! Thank you
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    36 days to A level results

    Question for Wednesday 08/07/15
    A Level Maths upwards
    Attached Images
  1. File Type: pdf Q9, Wednesday, 08-07-15, solution.pdf (141.8 KB, 45 views)
  2. File Type: pdf Q9, Wednesday, 08-07-15.pdf (13.0 KB, 96 views)
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    (Original post by TeeEm)
    36 days to A level results

    Question for Wednesday 08/07/15
    A Level Maths upwards
    Reverse quotient rule?
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    (Original post by naxiv)
    Reverse quotient rule?

    I am going to put the solution up after midnight UK time.

    This can be done 3 ways

    trigonometric substitution
    hyperbolic substitution

    or

    in a very very clever way.
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    (Original post by TeeEm)
    I am going to put the solution up after midnight UK time.

    This can be done 3 ways

    trigonometric substitution
    hyperbolic substitution

    or

    in a very very clever way.
    I saw the trig substitution

    Whats the clever way
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    (Original post by Gilo98)
    I saw the trig substitution

    Whats the clever way

    you have 6 hours to my solution to find it...
    (what is wrong with youngsters these days and they want the food on a plate...)
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    (Original post by TeeEm)
    you have 6 hours to my solution to find it...
    (what is wrong with youngsters these days and they want the food on a plate...)

    Spoiler:
    Show
    clue?
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    (Original post by Gilo98)

    Spoiler:
    Show
    clue?
    Do it by a trigonometric substitution.
    look at the simplicity of the answer...
    then if you are smart you will face palm and say to yourself... "maybe I should have seen this"
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    (Original post by TeeEm)
    Do it by a trigonometric substitution.
    look at the simplicity of the answer...
    then if you are smart you will face palm and say to yourself... "maybe I should have seen this"
    I may do so later. Currently sitting on the veranda enjoying the Portuguese sun
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    (Original post by Gilo98)
    I saw the trig substitution

    Whats the clever way
    You can do it in about 2 lines if you find the clever way
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    (Original post by Gilo98)
    I may do so later. Currently sitting on the veranda enjoying the Portuguese sun
    Same ... I am enjoying Greek sun, but I am still doing maths
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    (Original post by Gome44)
    You can do it in about 2 lines if you find the clever way
    that is why I did not put the answer, because just seeing the answer it gives it away. (you can actually see how I made this question)
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    (Original post by Gome44)
    You can do it in about 2 lines if you find the clever way
    This will haunt me until I sit down and work through it......

    (Original post by TeeEm)
    Same ... I am enjoying Greek sun, but I am still doing maths
    But you are a maths nerd
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    I have found the trick.....I think.....a simple manipulation.....GCSE technique really...

    (Original post by TeeEm)
    t
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    (Original post by Gilo98)
    I have found the trick.....I think.....a simple manipulation.....GCSE technique really...
    did you resort to messaging gome44?
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    (Original post by TeeEm)
    that is why I did not put the answer, because just seeing the answer it gives it away. (you can actually see how I made this question)
    (Original post by TeeEm)
    did you resort to messaging gome44?
    So too make a tough integration question do you just get a function, differentiate it, then manipulate the **** out of it?

    Also, can confirm that he did not message me
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    (Original post by Gome44)
    So too make a tough integration question do you just get a function, differentiate it, then manipulate the **** out of it?

    Also, can confirm that he did not message me
    there are many ways

    for integration this is one technique


    if you are interested in question making (A level standard) the most important technique is "shifting/translation"
    This technique allows blatant stealing.

    Imagine I came across a beautiful vector question where the numbers work wonders but it is a nightmare to make a similar one.

    Translate every coordinate in the problem say add 1 to the Xs, subtract 3 from the Ys, add 2 to the Zs.

    All you did you shifted the problem in space, so everything works the same, numbers will be nice and you have a new question.

 
 
 
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