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Math Help - simplify exponents

  1. #1
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    simplify exponents

    2N <br />
^{\frac{2}{5}}<br />
h <br />
^{\frac{3}{5}}<br />
    do I just multiply 2 X N then take the answer and raise to the power of 2/5
    Or do I raise N to the power of 2/5 and then X by 2
    Last edited by Graeme; May 14th 2008 at 02:07 AM. Reason: entered info incorrectly
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  2. #2
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    Quote Originally Posted by Graeme View Post
    2N <br />
^{\frac{2}{5}}<br />
h <br />
^{\frac{3}{5}}<br />
    do I just multiply 2 X N then take the answer and raise to the power of 2/5
    Or do I raise N to the power of 2/5 and then X by 2
    Do you mean 2N^{\frac25}h^{\frac35}? If so, exponentiation takes precedence over multiplication, so you have to take N to the \frac25 before you multiply by two, unless the problem is written with the 2N in parentheses.
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  3. #3
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    So if I raise N to the power of 2/5 then x 2 =answer a
    Then h to the power 3/5 =answer b
    then a x b does that look correct
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  4. #4
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    Quote Originally Posted by Graeme View Post
    Thanks
    So if I raise N to the power of 2/5 then x 2 =answer a
    Then h to the power 3/5 =answer b
    then a x b does that look correct
    Yes, this is the correct order.
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