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Definition of "cos" []

  • See romaine. (noun)
  • Cosine (abbreviation)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "cos" in a sentence
  • "You know for example, that: sin (4x) = 2sin (2x) cos (2x) sin (2x) = 2sin (x) cos (x) cos (2x) = cos² (x) - sin² (x), etc ..."
  • "cos A + iSinA + cos C +iSin C = 2 (cos B+ iSinB) cos A+Cos C +i (sin A +sin c) = 2cosb + i2sin b cos a +cos c = 2 cos b sin a +sin c = 2 sin b"
  • "Again dy_2 = - 3l cos [theta] {4 cos² [theta] - 3} d [theta] = - 3 {4 cos²"