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/ˈɑːɹkˌsaɪn/ · noun
(trigonometry) Any of several single-valued or multivalued functions that are inverses of the sine function. Symbol: arcsin, sin⁻¹.
Use arcsine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Arcsine means (trigonometry) Any of several single-valued or multivalued functions that are inverses of the sine function. Symbol: arcsin, sin⁻¹.
Common synonyms include antisine, inverse sine.
The opposite depends on the specific sense.
Use arcsine where its definition matches the intended context.
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