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Math Help - Newtons Method Help??

  1. #1
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    Newtons Method Help??

    write down an equation g(x) such that its root g(x) = 0 occurs when x = 7^(1/3). Differentiate it to obtain g(x). I dont understand how to do this....

    it also says while e < 10^(5)

    Any thoughts?

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  2. #2
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    Re: Newtons Method Help??

    You are misreading the question. It certainly does NOT say "the equation g(x)" because "g(x)" is not an equation. Also you cannot mean that g(x)= 0 is a solution of an equation because the solution of an equation is a number, not another equation.

    You mean that x= 7^{1/3} is a root of the equation g(x)= 0. Take the third power of each side: x^3= 7 and then g(x)= x^3- 7= 0. Can you differentiate that?
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  3. #3
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    Re: Newtons Method Help??

    Shoot.... i didnt even think about that. That was a dumb move lol what does the epislom stuff mean???
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  4. #4
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    Re: Newtons Method Help??

    and yes i can
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