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Feb 16, 2012
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Dictionary


arc' cotan'gent



Trig.
the angle, measured in radians, that has a cotangent equal to a given number. Abbr.: arc cot Symbol: cot-1 Also called inverse cotangent.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

arc cosineArc, d'
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