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Math Help - a little help please

  1. #1
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    a little help please

    find a number between 3.24 and 3.241 if there is one. is there is no number between them,explain why not.

    the smallest real number that is greater than 2?explain or why not in your own words.
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  2. #2
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    Quote Originally Posted by luzerito View Post
    find a number between 3.24 and 3.241 if there is one. is there is no number between them,explain why not.

    the smallest real number that is greater than 2?explain or why not in your own words.
    Take 3.2405
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by luzerito View Post
    the smallest real number that is greater than 2?explain or why not in your own words.
    this does not exist. you are asking for a number in the interval (2, \infty). this is a subset of \mathbb{R} that has no least element. Meaning, any number you choose in there, you can find a smaller number in there.
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  4. #4
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by luzerito View Post
    please i need help
    find a number between 3.24 and 3.241. if not explain



    the smallest real number that is greater than two?explain not

    i hope you can help asa thanks
    The smallest real number greater than two would be " \lim_{x\to2^{+}}x" note the ""...you cant have this...you name a number I will name a number smaller...it is why non-included endpoints in a domain cannot have endpoint extrema
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  5. #5
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    If you have two distinct real numbers x and y, you can ALWAYS find a number \frac{x+y}{2} where x<\frac{x+y}{2}<y. For your example, 3.24<\frac{3.24+3.241}{2}<3.241 \implies 3.24<3.2405<3.241.
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  6. #6
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    Hello, luzerito!

    Find a number between 3.24 and 3.241. If not, explain.

    Given two different numbers, their average is always between them.


    For example: . \frac{3.24 + 3.241}{2} \:=\:3.2405

    . . and: . 3.2400 < 3.2405 < 3.2410





    The smallest real number that is greater than two.
    There is no smallest number greater than two.


    If you say: . 2\frac{1}{10} = 2.1 is the smallest,
    . . we can say: . 2\frac{1}{1,\!000} = 2.001 is smaller,
    . . then you can say: . 2\frac{1}{100,\!000} = 2.00001 is even smaller . . . etc.

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