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    (Original post by Google)
    :eek: :eek: :eek: :eek: :eek:
    the math man is here
    numbers war started
    LOL! I'm a girl :p: and I'm a natsci not a mathmo!
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    (Original post by Lozza)
    haha ok, didn't realise he actually knew he was being dumb. it really does look like something my little sister would write down tho :eek:
    you evidently dont think much of your sister :rolleyes:
    (Original post by Lozza)
    oh i really hope there's a nice matrix question today.
    yey. matrices.
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    (Original post by Lozza)
    LOL! I'm a girl :p: and I'm a natsci not a mathmo!

    Sorry :embarasse
    I did not see it
    but great work, really
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    (Original post by Google)
    Sorry :embarasse
    I did not sow it
    but great work, really
    sorry to burst your bubble - but its hardly rocket science - just pointing out that dividing by zero is never a good thing :rolleyes:...
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    (Original post by Zuber)
    here's a thread where you can post the best maths illusions. Please feel free to post illusions.

    Here's mine. tell me what you think of it

    a = b
    times both sides by b
    ab = b2
    minus a2
    ab – a2 = b2 – a2
    factorise
    a(b-a) = (a+b)(a-b)
    divide by (b-a)
    a = a+b
    replace b by a
    a = a + a
    a = 2a
    divide by a
    1 = 2



    If 1 = 2, the world would end
    :eek:

    Maths here too
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    The meaning of life is the opposite of the meaning of death.
    Death means not existing, being nothing.
    Nothing = 0
    0=0/1

    Therefore,
    The meaning of life = opposite of 0/1 = 1/0
    Meaning of life = 1/0 = undefined.
    The meaning of life is undefined.

    However:
    Infinity = undefined = 1/0
    Infinity = never ending
    Never ending = forever

    Diamonds are forever (like the Bond film, ok)
    Diamonds = forever = never ending = infinity
    As infinity = meaning of life,
    Diamonds are the meaning of life

    Diamonds = a girl’s best friend (again, like in the movie)
    I’m a girl. I’m my own best friend = (therefore I am) a girl’s best friend = diamonds = meaning of life.

    Therefore I am the meaning of life.

    That's right everyone. Bow down.

    I can feel my messiah complex kicking in already.
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    seen it *yawns*
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    (Original post by Zuber)
    here's a thread where you can post the best maths illusions. Please feel free to post illusions.

    Here's mine. tell me what you think of it

    a = b
    times both sides by b
    ab = b2
    minus a2
    ab – a2 = b2 – a2
    factorise
    a(b-a) = (a+b)(a-b)
    divide by (b-a)
    a = a+b
    replace b by a
    a = a + a
    a = 2a
    divide by a
    1 = 2



    If 1 = 2, the world would end
    Moron. You can't divide both by (b-a) because there isn't a (b-a) on each side. Look carefully on the right side and there is (a+b) and (a-b), neither of which is the same as (b-a). All this example proves is how good your eyesight is.

    Sorry about that, I've just done a maths test and can't think of anything else at the moment.
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    its wrong. You cant divide.....

    DAMNIT sherunsaway you beat me to it!!!!


    Old classic


    x=0.9reccuring
    *10
    10x=9.9 reccuring
    10x-x
    9x=9
    x=1

    But x also equals 1, meaning that 1 ≡ 0.9reccuring


    Im thinking though, could this have the same principle as an ordered pair, in that to fit the quation there are 2 possible values. Actually maybe not, as they dont proooveeach other. Hmm i dunno
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    Oh yeah, lots of ways to do that one...

    1/3 = 0.3 recurring

    3*(1/3) = 1
    But, 3*(0.3 recurring) = 0.9 recurring

    is another valid one
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    ^^
    thats true, and simpler.

    so what is 1.9 reccuring x 2
    3.9 reccuring but somewheree at the end an 8 would have jto be present

    Might it be

    .
    3.98?
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    (Original post by sherunsaway)
    Moron. You can't divide both by (b-a) because there isn't a (b-a) on each side. Look carefully on the right side and there is (a+b) and (a-b), neither of which is the same as (b-a). All this example proves is how good your eyesight is.

    Sorry about that, I've just done a maths test and can't think of anything else at the moment.
    Um... yes you can: it's the same as dividing by -(a-b). Admittedly this is not what as been done (the LHS has not been multiplied by -1), but it's still a valid thing to do.
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    ^^
    read this part
    a(b-a) = (a+b)(a-b)
    divide by (b-a)
    thus his proof is incorrect
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    anyone who says he made a mistake...you're right

    anyone who says it's incorrect because of the dividing by zero - you're right as well.

    you can't do maths illusions (well any marks i got in that tripos exam might be illusions)
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    1+1=3 Kaboom!!!!!!!!!!!!!
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    dear god no!!!

    if thats true then 2+2=5!!!!!!
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    (Original post by MR_JR)
    dear god no!!!

    if thats true then 2+2=5!!!!!!
    Of course it doesn't, that's completely illogical. Everyone knows that 2+2=∞
    • Thread Starter
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    sorry all. i edited my original post. b2 - a2 = (b-a)(b+a), i was just writing it quickly and so wrote it the wrong way round. . and everyone its an illusion, dont get so worked up (eg lozza).
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    (Original post by Lozza)
    i've realised i can't even post what i wanted to because they don't have the correct symbols so i'll post in words
    e^i(theta) = cos(theta) + isin(theta)
    woo
    which gives my fave equation
    e^i.pi +1 = 0
    You can either use the tex tags or the symbols above the input box
    \fontsize{4}e^{i\theta}=\cos\the  ta + i\sin\theta\ \mathrm{so}\ e^{i\pi}+1=0
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    (Original post by El Chueco)
    you evidently dont think much of your sister :rolleyes:
    my sister is 11.

    i'm allowed to get worked up. i've been drunk for thelast 5 hours. very very paifnull y drunk.
 
 
 
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