Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several single-valued or multivalued functions that are inverses of the cosine function. Symbol: arccos, cos-1

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the inverse function of the cosine; the angle that has a cosine equal to a given number

Etymologies

arc- +‎ cosine (Wiktionary)

Examples

  • The inverse of the cosine function is the arccosine function.

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  • Graph of the hyperbolic arccosine function. arccosine function is limited to the non-negative reals, that is, to real numbers y such that y!

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  • The range of the arccosine function is limited to values of y between, and including, 0 and

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  • These are known as the hyperbolic arcsine, hyperbolic arccosine, hyperbolic arctangent, hyper - bolic arccosecant, hyperbolic arcsecant, and hyperbolic arccotangent.

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  • Based on the information shown in Fig. Test 1-1 and given in Question 4, it appears that the hyperbolic arccosine of 0 is (a) equal to 1 (b) equal to 0 (c) non-negative (d) greater than or equal to 1 (e) not de fi ned 7.

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