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cotangent
noun [C] maths /ˌkəʊˈtændʒənt/
singularcotangent
pluralcotangents
  1. in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side between the angle and the right angle divided by the length of the side opposite the angle 余切
     Synonyms and related words

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