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It is easier to answer the opposite: an irrational number cannot be written as:

  • a ratio of two integers
  • a terminating decimal
  • a recurring decomal.

It can be written as an expression containing Irrational Numbers, such as 2*pi or 3*√2 or sin(37°) or log(3) or e2 or a combination of these or similar functions.

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11y ago

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