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arc secant

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noun Trigonometry.

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

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Also called inverse secant .

Origin of arc secant

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Scientific definitions for arc secant

arc secant

The inverse of the secant function.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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