| NOUN | relation | arccosine, arc cosine, arccos, inverse cosine | the inverse function of the cosine |
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| Meaning | The inverse function of the cosine; the angle that has a cosine equal to a given number. | |
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| Synonyms | arc cosine, arccos, inverse cosine | |
| Broader | trigonometric function, circular function | function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |
| Spanish | arccos, arcoseno | |
| Catalan | arccos | |
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