neek8 neek8
  • 17-05-2016
  • Mathematics
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an is a letter or symbol that represents some unknown value

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apologiabiology
apologiabiology apologiabiology
  • 17-05-2016
a placeholder represents an unknown value
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Аноним Аноним
  • 17-05-2016
A "placeholder", or a "valuable"/"variable" could be used to describe an unknown value.
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