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    Madihakazi's Avatar
    Madihakazi Posts: 20, Reputation: 1
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    #1

    Jul 21, 2011, 09:36 AM
    Maths- Exponents
    Evaluate 3 raised to 0 multiplied by 4 raised to 3/2.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jul 21, 2011, 11:26 AM

    First, do you know how to evaluate ?

    Second, you can ealuate in either or two ways: this is equaivalent to either:



    or



    So to do this - do you know how to evaluate either of those expressions?
    Madihakazi's Avatar
    Madihakazi Posts: 20, Reputation: 1
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    #3

    Jul 21, 2011, 12:10 PM
    No... *** b more precise... I know that 3 raised to 0 stands for 1. can you explain the other half.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #4

    Jul 21, 2011, 12:35 PM


    OK - a number raised to 1/2 means the square root of the number. If raised to 1/3 it's the cube root, etc. So for example:

    since
    since

    The other property of exponents to be aware of is that



    Thus for example to evaluate :

    , or you could do it like this:



    Hope this helps.
    Madihakazi's Avatar
    Madihakazi Posts: 20, Reputation: 1
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    #5

    Jul 22, 2011, 11:55 AM
    Comment on Madihakazi's post
    Thank you very much... u helped clear my understanding completely...

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