The inverse of the cosine function is the arccosine function.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The range of the arccosine function is limited to values of y between, and including, 0 and.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Graph of the hyperbolic arccosine function. arccosine function is limited to the non-negative reals, that is, to real numbers y such that y!.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

These are known as the hyperbolic arcsine, hyperbolic arccosine, hyperbolic arctangent, hyper - bolic arccosecant, hyperbolic arcsecant, and hyperbolic arccotangent.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

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.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Graph of the arccosine function for À1 x 1. 52.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

145, 228 celestial longitude, 102, 105-107 second, 10, 145, 229 circle arccosecant function definition of, 8-9 definition of, 48 equation of, 81 graph of, 52-53 graph of, 81-82 arccosine function circle model, 3-20 definition of, 48 circular functions graph of, 51 graphs of, 38-44.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

58-59 graph of, 67 graph of, 59-60 hyperbolic arccosine function hyperbolic tangent definition of, 64-65 of difference, 73 graph of, 65-66 of double value, 72 hyperbolic arccotangent function of negative variable, 71 definition of, 64-65 of sum, 73 graph of, 67-68 hyperbolic tangent function hyperbolic arcsecant function definition of, 59 definition of, 64-65 graph of, 61 graph of, 67-68 hypotenuse, 22-23, 27 hyperbolic arcsine function definition of, 64-65 independent variable, 4, 103 graph of, 65 index of refraction, 208 hyperbolic arctangent function inductive reactance, 195-197 definition of, 64-65 inductor, 195.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference