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Math Help - small changes

  1. #1
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    small changes

    A share has value $y, x days after launch, given by y=x^(1/3),find the value of share 1000days after launching and use 'small changes' to find the value 1000 days after launching
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  2. #2
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    Quote Originally Posted by Rose Wanjohi View Post
    A share has value $y, x days after launch, given by y=x^(1/3),find the value of share 1000days after launching and use 'small changes' to find the value 1000 days after launching
    The first part of that is just arithmetic: y= 1000^{1/3}= 10.

    I don't know what the second part of that means. "Small change" from what? Is it possible that the second part asked for the value after, say, 1001 days or 1008 days?
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  3. #3
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    no, 1001 is a big change it is something like 1000.1 days so say the small change can be
    1000.1-1000=0.1
    small change in y=dy/dx*small change in x=dy/dx*0.01
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