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    (Original post by TeeEm)
    OK
    This one will hurt like hell
    It is a new one so it does not appear into any of my books/papers

    solution tomorrow
    asdfghjhgfds
    I'm wasting too much time on this, I'm going to go revise some D1 and C3. I'll try again tomorrow

    I've tried by parts with \displaystyle\int (3sinx+4cosx)(2sinx-cosx)^{-1}
    But I hit a dead end :lolwut:

    Next I tried this (see attached), can't manage to integrate \displaystyle\int \dfrac{sinx}{2sinx-cosx} though.

    I'll try again tomorrow :curious:
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    (Original post by edothero)
    asdfghjhgfds
    I'm wasting too much time on this, I'm going to go revise some D1 and C3. I'll try again tomorrow

    I've tried by parts with \displaystyle\int (3sinx+4cosx)(2sinx-cosx)^{-1}
    But I hit a dead end :lolwut:

    Next I tried this (see attached), can't manage to integrate \displaystyle\int \dfrac{sinx}{2sinx-cosx} though.

    I'll try again tomorrow :curious:
    I told you it will hurt ...


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    (Original post by TeeEm)
    I told you it will hurt ...


    you need Name:  72.jpg
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    solution?
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    (Original post by xyzmaster)
    solution?
    tonight
    teaching now
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    (Original post by TeeEm)
    tonight
    teaching now
    But it's sunday bro!

    How can you be teaching on a sunday? Sunday should be spent chillaxing and stuff

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    (Original post by it's a me, mario)
    But it's sunday bro!

    How can you be teaching on a sunday? Sunday should be spent chillaxing and stuff

    Posted from TSR Mobile
    No rest for the wicked....? :evilbanana:
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    (Original post by xyzmaster)
    solution?
    here is the integral and its solution
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  1. File Type: pdf Document1.pdf (96.8 KB, 75 views)
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    another tough integral

    solution tomorrow evening
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  2. File Type: pdf Document1.pdf (8.0 KB, 60 views)
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    solution of the integral from the previous post (228)
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  3. File Type: pdf Document1 with solution.pdf (530.4 KB, 63 views)
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    http://www.thestudentroom.co.uk/show....php?t=3353445 (post 2)

    and papers at
    http://www.thestudentroom.co.uk/show....php?t=3361867
    http://www.thestudentroom.co.uk/show....php?t=3361905
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    Out of interest, are you working on an unofficial M2 Edexcel mark scheme?
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    (Original post by Quantaˌ)
    Out of interest, are you working on an unofficial M2 Edexcel mark scheme?
    I am afraid I am not ...
    I am working on some disgusting integration at the moment ...
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    (Original post by TeeEm)
    I am afraid I am not ...
    I am working on some disgusting integration at the moment ...
    Ah, no problem. I was just wondering whether anyone is. You wouldn't have any idea, would you? I'm just trying to work out a rough mark/UMS score. But, thanks anyway!
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    (Original post by Quantaˌ)
    Ah, no problem. I was just wondering whether anyone is. You wouldn't have any idea, would you? I'm just trying to work out a rough mark/UMS score. But, thanks anyway!
    I do not even have the paper ...
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    (Original post by TeeEm)
    I do not even have the paper ...
    Ah, I see. No problem. Thanks for the help!
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    In the following links there are resources for C3/C4 ALL BOARDS

    FUNCTIONS
    http://madasmaths.com/archive/maths_..._questions.pdf

    EXPONENTIALS
    http://madasmaths.com/archive/maths_..._questions.pdf

    TRIGONOMETRY
    http://madasmaths.com/archive/maths_..._questions.pdf

    INVERSE TRIGONOMETRIC FUNCTIONS
    http://madasmaths.com/archive/maths_..._functions.pdf

    DIFFERENTIATION
    http://madasmaths.com/archive/maths_..._questions.pdf

    MODULUS
    http://madasmaths.com/archive/maths_..._questions.pdf

    NUMERICAL SOLUTIONS OF EQUATIONS
    http://madasmaths.com/archive/maths_..._equations.pdf

    BINOMIAL EXPANSIONS
    http://madasmaths.com/archive/maths_..._questions.pdf

    IMPLICIT EQUATIONS
    http://madasmaths.com/archive/maths_..._questions.pdf

    RELATED RATES OF CHANGE
    http://madasmaths.com/archive/maths_..._of_change.pdf

    PARAMETRIC EQUATIONS (no integration here)
    http://madasmaths.com/archive/maths_..._questions.pdf

    INTEGRATION
    http://madasmaths.com/archive/maths_...ons_part_i.pdf

    PARAMETRIC INTEGRATION
    http://madasmaths.com/archive/maths_..._questions.pdf

    VOLUME OF REVOLUTION
    http://madasmaths.com/archive/maths_...revolution.pdf

    DIFFERENTIAL EQUATIONS
    http://madasmaths.com/archive/maths_..._modelling.pdf

    VECTORS
    http://madasmaths.com/archive/maths_...ons_part_a.pdf
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    DEFINITE INTEGRATION FILE WITH ANSWERS SUITABLE FOR EDEXCEL C4

    (I will try to post full solutions before the exam on Tuesday)
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  4. File Type: pdf DEFINITE INTEGRATION A2 (without solutions).pdf (68.6 KB, 55 views)
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    I did solutions to some integrals today which will be added in various places in my resources.
    I have no time to format them right now, but I will upload solutions as soon as I format.
    They are suitable for further mathematicians and STEPers
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  5. File Type: pdf Document2.pdf (19.4 KB, 51 views)
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    Hi, would this get the marks for question 7 in C3 U?

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    (Original post by aersh8)
    Hi, would this get the marks for question 7 in C3 U?

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    I have not written marking schemes (and not intending to) for my papers as the full solutions suffice ...
    Thus I probably I might have given 2 or 3 out of 4 for this attempt, as this only proves the result for "acute angles" only.
 
 
 
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