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arc cosine: Meaning and Definition of

arc' co'sine

Pronunciation: [key]
  1. the angle, measured in radians, that has a cosine equal to a given number. Abbr.: arc cos; Symbol: cos&hasp; Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
arc cosecant arc cot
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