inverse sine vs arcsine

inverse sine and arcsine both are nouns.

Word	Noun	Adjective	Verb	Adverb
inverse sine	Yes	No	No	No
arcsine	Yes	No	No	No

As nouns, inverse sine and arcsine are synonyms defined as:

inverse sine and arcsine: the inverse function of the sine; the angle that has a sine equal to a given number

Other synonyms of inverse sine include arc sine, arcsin.

inverse sine (noun)	arcsine (noun)
the inverse function of the sine; the angle that has a sine equal to a given number	the inverse function of the sine; the angle that has a sine equal to a given number