Inverse cosine: Representations through equivalent functions (subsection 27/02/04/21)

ArcCos

$Mathematica Notation$

Involving cos^-1(((1+z²)^1/2-z)^1/2/(2^1/2(1+z²)^1/4))

Involving cos^-1(((1+z²)^1/2-z)^1/2/(2^1/2 (1+z²)^1/4)) and cot^-1(z)

Involving cos^-1(((1+z²)^1/2-z)^1/2/(2^1/2 (1+z²)^1/4)) and cot^-1(1/z)