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    Algebra: rational and real expressions

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    Attached is a discussion paper, which had two expressions that needed to be solved. I wrote only a little about real numbers.

    Of these numbers to the right, 2.5, 0, 1/3, -0.2121121112111..., 0.11111..., pi, 14, 14.28561,which is/are real? Can the numbers provided above also be applied in the same manner as my paper? Also, can a real number be negative? Explain the reasoning. Can you think of any numbers that are not real?

    Any assistance is greatly appreciated.

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    Solution Preview

    Of these numbers to the right, 2.5, 0, 1/3, -0.2121121112111..., 0.11111..., pi, 14, 14.28561, which is/are real?
    All these numbers you mentioned are real. That is because integers and rational numbers are also real. ...

    Solution Summary

    Examples of real and complex numbers are given in the solution. Rational, integer and real numbers explained.