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Please!

Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
someone integrate 2x^2 - 2x between 0 and 1 for me please :)

I'm so sure I have the right answer, but my answer sheet says different. *frowns*

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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    twelve.
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Originally posted by Slayer_Pantera
    twelve.

    No way :p
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Tis awfully cloudy today!

    I'm not that good at maths, sorry. :p
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    You're all useless!!!

    *tears all her hair out*
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    EIGHTY FOUR!!!?


    ok I suck at maths! sorry!
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Originally posted by Slayer_Pantera
    EIGHTY FOUR!!!?


    ok I suck at maths! sorry!

    The answer is 1/3... but I get -1/3, and I don't understand why you have to take the negative of your answer.

    *sighs*
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    You should notice that the value of the integral is

    positive when the area is above the x- axis
    negative when the area is below the x- axis


    Now why did nobody tell me that before? Fucking useless maths teachers.
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Its the bomdas rule- same apllies here but you invert it so change the signs
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    *has nosebleed now*
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Originally posted by Docter Lurve
    Its the bomdas rule- same apllies here but you invert it so change the signs

    The what?

    *looks blank*
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    serves u right for stressing yourself over exams!!
    CHILL!!
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    BODMAS!!!!!!! :lol:
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Is this GCSE maths? I got an A a couple of years ago and I have no fucking idea what you're talking about.

    BODMAS though is the order you do your equations in. So first you do the Brackets, then Division and Multiplication, then Addition and Subtraction.

    = BODMAS

    And that's all the knowledge I've retained, 2 years on.
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Originally posted by lisa simpson's saxophone
    Is this GCSE maths?

    Don't think so. I did GCSE maths and don't remember any integration.

    Mind you, just because I don't remember it doesn't mean very much, I don't remember what happened yesterday either.
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    Former MemberFormer Member Posts: 1,876,323 The Mix Honorary Guru
    Originally posted by lisa simpson's saxophone
    Is this GCSE maths? I got an A a couple of years ago and I have no fucking idea what you're talking about.

    I'm in Scotland. It's Higher maths, which i'm told is sorta equivalent to ASlevel.
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