arccosine
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.arc·co·sine
noun \(ˌ)är(k)-ˈkō-ˌsīn\Definition of ARCCOSINE
: the inverse function of the cosine <if y is the cosine of θ, then θ is the arccosine of y>
First Known Use of ARCCOSINE
circa 1884
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