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arc cotangent

noun, Trigonometry.
the angle, measured in radians, that has a cotangent equal to a given number. Symbol: cot −1.
Abbreviation: arc cot.
Also called inverse cotangent.
Origin of arc cotangent
1905-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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arc-cotangent in Science
arc cotangent  
The inverse of the cotangent function.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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