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    (Original post by Melting Sugar.)



    how about you rep me, then you go do it :awesome:
    Already did it anyways
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    (Original post by lozz2601)
    If that is Glee inspired.....

    well, you are a legend is all
    Well I loved it before Glee but I've had it in my head since it was on!
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    (Original post by letsdothetimewarpagain)
    Well I loved it before Glee but I've had it in my head since it was on!
    lol that just about counts
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    (Original post by ArchedEdge)
    Already did it anyways
    :sad:
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    football is beautiful. that is all.
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    (Original post by lozz2601)
    football is beautiful. that is all.
    lol Reading :mmm:
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    (Original post by natty_d)
    lol Reading :mmm:
    you'd better not mean what i think you mean :p:
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    (Original post by lozz2601)
    you'd better not mean what i think you mean :p:
    I don't think so :ninja:

    But well done for knocking out Liverpool :rofl:
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    ohh okay
    i thought you were laughing at us and that made me sad :p:
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    i've got mechanics coming out my ears
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    :nothing:
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    :yawn:
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    Maths me again plz.

    Given that cos A = 3/4, where 270° < A < 360°, find the exact value of sin 2A.

    Apparently sinA is equal to (-root7)/4

    I don't see how you get that so easily?

    EDIT: Wait got it
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    (Original post by overclocked)
    i've got mechanics coming out my ears
    :ditto:

    i have 4 papers to finish. so what do i do instead? watch gossip girl. fml.
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    D1 is killing me. I'm so bored. :cry2:
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    (Original post by ArchedEdge)
    Maths me again plz.

    Given that cos A = 3/4, where 270° < A < 360°, find the exact value of sin 2A.

    Apparently sinA is equal to (-root7)/4

    I don't see how you get that so easily?

    EDIT: Wait got it
    Firstly,  \sin^2 A = 1-  \cos^2 A = \dfrac{16-9}{16} = \dfrac{7}{16} .

    Also, due to the range of A, sin(A) is negative - hence \sin A = -\sqrt{\dfrac{7}{16}} = -\dfrac{\sqrt{7}}{4}

    Note that:  \sin 2A = 2\sin A\cos A .
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    (Original post by natty_d)
    D1 is killing me. I'm so bored. :cry2:
    sameeeeeee. hate my life. hate d1. hate everything. :p:
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    (Original post by John Locke)
    sameeeeeee. hate my life. hate d1. hate everything. :p:
    Are you doing D1 tomorrow as well? :awesome:
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    I'm doing D1 tomorrow. :sexface:
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    (Original post by natty_d)
    Are you doing D1 tomorrow as well? :awesome:
    yaaaaaah.

    i'll be there in our freezing cold hall, trying to find names in a list with an algorithm, when i can clearly see they arent there :p: .
 
 
 
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