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   English ⇄
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arc cotangent ['ɑ:kkəu'tænʤ(ə)nt]
bridg.constr. 反余切
arc-cotangent
math. 反余切
 English thesaurus
arc cotangent ['ɑ:kkəu'tænʤ(ə)nt]
tech., abbr. arc cot; arc ctg; arc ctn

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