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Robert
Lv 4
Robert asked in Science & MathematicsMathematics · 4 years ago

How do you write, x is undefined for all values in interval notation?

We are working with Real Numbers only if that helps.

3 Answers

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  • nbsale (Freond)
    Lv 6
    4 years ago

    I don't know what it means for a variable to be "undefined for all values." That phrase makes no sense. Can you provide more context for your question?

    Are you trying to say f(x) = something has no solutions? Then you can't use interval notation to express that.

  • Jim
    Lv 7
    4 years ago

    x ∉ ℝ

    x is not a member of Real

  • Randy P
    Lv 7
    4 years ago

    The domain of x is the empty set, if there truly are no values for which the function is defined (that sounds a little strange). I would use the empty set symbol.

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