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Math Help - root of a root

  1. #1
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    root of a root

    Hi;
    I've not come across this before what does sqrtsqrt25 mean?

    Thanks.
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  2. #2
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    Switching to exponential notation makes it more clear.

    [25^()]^() = 25^(*) = 25^() -- The fourth rooth of 25.

    or

    [25^()]^() = 5^() -- The square root of 5.
    Last edited by TKHunny; April 23rd 2011 at 07:53 PM.
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  3. #3
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    Ok thanks for that do you know any websites where i an learn about these.
    What is this process called
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  4. #4
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    Quote Originally Posted by anthonye View Post
    Ok thanks for that do you know any websites where i an learn about these. What is this process called
    You need to learn rational exponents.
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  5. #5
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    Quote Originally Posted by anthonye View Post
    Hi;
    I've not come across this before what does sqrtsqrt25 mean?

    Thanks.
    Since the 'inner' square root gives you 5, I would have thought it was simply sqrt(5) .....
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  6. #6
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    Yeah thanks guys I had thought that it would be inner root then outer root I was just checking as I only had my first very quick look at this root in a root but had to go out just needed confirmation.
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