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    Phew, got scared for a second

    I'm actually feeling a bit nervous now...I'm under a lot of pressure to do very well
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    (Original post by Superman_Jr)
    The solomon papers actually get harder? I swear paper B was the hardest out of them all. :eek:
    Only difficult question there was the one that asks Sin5x + Sinx. What part did you get stuck on?
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    in some iteration questions where you have to find the root and you just keep going till it converges.... what does this mean
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    can anyone help me with this. I am terrible at logs.

    solve:
    10^(x-2)=2^(x+2)
    I would think of taking logs?
    so..
    (x-2)10=(x+2)2?
    then what would i do?

    xxxx
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    Good luck everyone Those of you who have to get A* for your offers, don't put too much pressure on yourself.. just do your best
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    (Original post by uer23)
    Where are you taking your exam ?
    kenya
    (Original post by milliondollarcorpse)
    WTF. Please tell me it's an afternoon exam
    exam in an hour.....i am GMT+3
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    (Original post by milliondollarcorpse)
    Phew, got scared for a second

    I'm actually feeling a bit nervous now...I'm under a lot of pressure to do very well
    sorry for that. you should have checked my location!!
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    how do you draw this graph: y=ln(modulus of 4x-12)
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    (Original post by kosy91)
    kenya

    exam in an hour.....i am GMT+3
    Oh right, good luck.
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    (Original post by Smile-Like-You-Mean-It)
    can anyone help me with this. I am terrible at logs.

    solve:
    10^(x-2)=2^(x+2)
    I would think of taking logs?
    so..
    (x-2)10=(x+2)2?
    then what would i do?

    xxxx
    Take ln of both sides:

    ln10^(x-2) = ln2^(x+2)

    Now bring the power down, rules of logs:

    (x-2)ln10=(x+2)ln2

    Multiply out brackets:

    xln10 - 2ln10 = xln2 + 2ln2

    collect x terms:

    xln10 - xln2 = 2ln2 + 2ln10

    rules of logs to simplify:

    xln(10/2) = 2ln(20) <== (2*10)

    x= 2ln20/ln5
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    (Original post by kosy91)
    how do you draw this graph: y=ln(modulus of 4x-12)
    Draw the graph of ln(4x-12) using the standard transformations you know from C1, then the part x≥0 you reflect in the y-axis.
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    Someone tell me how logs divide? Is it basically taking it to a minus power? If so, will I ever need to do it?
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    awwww everybody seems to be well-prepared except me Just did 1 paper yesterday for revision Wish all luck^^
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    (Original post by Merk that Sike of a Mike)
    Take ln of both sides:

    ln10^(x-2) = ln2^(x+2)

    Now bring the power down, rules of logs:

    (x-2)ln10=(x+2)ln2

    Multiply out brackets:

    xln10 - 2ln10 = xln2 + 2ln2

    collect x terms:

    xln10 - xln2 = 2ln2 + 2ln10

    rules of logs to simplify:

    xln(10/2) = 2ln(20) <== (2*10)

    x= 2ln20/ln5
    off topic but ur grades are admirable:p:
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    good luck everyone .
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    Was it Philip Glass Piano Metamorphises? youtube em....
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    nervous about this being hard.
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    (Original post by uer23)
    Draw the graph of ln(4x-12) using the standard transformations you know from C1, then the part x≥0 you reflect in the y-axis.
    It doesn't work like that. If it were the modulus of x only, then yes that would be correct.

    Edit: Ooh just realised, I think you draw the standard graph, then reflect it in the line x=3, which is the asymptote.
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    Eeee good luck guys!
    Just got 62/75 for Jan 2009..considering I only want a B, thats good!
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    Guys any tips on curve sketching and finding ranges and domains ?
 
 
 
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