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Maths Higher 2001 Paper 1 Q6 part c (different solution)

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  • 15-12-2009 8:12pm
    #1
    eoins2345
    Closed Accounts Posts: 154 ✭✭


    I did the log of both sides for x before getting x(2/t +1) for dx/dt but didnt didnt get the log of both of sides for y and got (1+2/t) for dy/dt.After cancellation i was left with the desired 1/x.Can u use this method even though it wasnt in the marking scheme?


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    #2
    caroline1111
    Registered Users Posts: 224 ✭✭caroline1111


    what year?


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    #3
    eoins2345
    Closed Accounts Posts: 154 ✭✭eoins2345


    sorry its 2001!


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    #4
    MathsManiac
    Registered Users Posts: 1,595 ✭✭✭MathsManiac


    eoins2345 wrote: »
    I did the log of both sides for x before getting x(2/t +1) for dx/dt but didnt didnt get the log of both of sides for y and got (1+2/t) for dy/dt.After cancellation i was left with the desired 1/x.Can u use this method even though it wasnt in the marking scheme?

    Yes.

    (Look at one of the recent marking schemes, and see point 7 under the "general directions to examiners".)


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