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Math Help - division

  1. #1
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    division

    hi,
    i need to know how i would work this out:

    18/squareroot 3? (sorry don't know how to write square root sign on here)
    im not sure how to do this so i require some help please, thanks.
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  2. #2
    MHF Contributor Siron's Avatar
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    Re: division

    Do you want to simplify it? Then just write: \frac{18}{\sqrt{3}}=\frac{6\cdot 3}{\sqrt{3}}=6\sqrt{3}
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  3. #3
    Super Member Quacky's Avatar
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    Re: division

    Alternatively,

    \frac{18}{\sqrt{3}}\cdot\frac{\sqrt{3}}{\sqrt{3}}=  \frac{18\sqrt{3}}{3}=6\sqrt{3}
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  4. #4
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    Re: division

    Quote Originally Posted by andyboy179 View Post
    hi,
    i18/squareroot 3? (sorry don't know how to write square root sign on here) im not sure how to do this so i require some help please, thanks.
    [tex]\frac{18}{\sqrt{3}}=6\sqrt{3}.[/tex] gives \frac{18}{\sqrt{3}}=6\sqrt{3}.
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  5. #5
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    Re: division

    thanks guys but could you also post how you got this so i can understand it please?
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  6. #6
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    Re: division

    Quote Originally Posted by andyboy179 View Post
    thanks guys but could you also post how you got this so i can understand it please?
    Study reply #3. That explains it rather well.
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  7. #7
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    Re: division

    what would i do if i had to write it inform of k square root 3??
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  8. #8
    Super Member Quacky's Avatar
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    Re: division

    6\sqrt{3} is in the form k\sqrt{3} as k refers to an unknown integer which you are expected to determine.
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  9. #9
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    Re: division

    so k=6?
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  10. #10
    Super Member Quacky's Avatar
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    Re: division

    Exactly.
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