Wiktionary - Recent changes [en]: arccos

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arccos Feb 4th 2013, 22:55 ← Older revision Revision as of 22:55, 4 February 2013 Line 4: Line 4:   {{prefix|arc|cos}}   {{prefix|arc|cos}}     − ==={{abbreviation}}=== + ===Noun===   {{en-noun}}   {{en-noun}}     − # {{trigonometry}} The inverse [[cosine]] function. + # {{abbreviation of|arccosine}}   #: <math> \arccos \left({1\over 2 \phi}\right) = {2 \pi \over 5}</math>   #: <math> \arccos \left({1\over 2 \phi}\right) = {2 \pi \over 5}</math>

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