arc cosine


nounTrigonometry.
  1. the angle, measured in radians, that has a cosine equal to a given number. Abbreviation: arc cos; Symbol: cos−1

Origin of arc cosine

1
First recorded in 1905–10
  • Also called inverse cosine .

Words Nearby arc cosine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

Scientific definitions for arc cosine

arc cosine

  1. The inverse of the cosine function.

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