Category:Inverse Cosine

Also see

 * Category:Inverse Sine
 * Category:Inverse Tangent
 * Category:Inverse Cotangent
 * Category:Inverse Secant
 * Category:Inverse Cosecant


 * Category:Inverse Hyperbolic Functions


 * Category:Cosine Function


 * Category:Hyperbolic Cosine Function
 * Category:Inverse Hyperbolic Cosine