Involving coth^-1((z²-1)^1/2+c z)

Involving coth^-1((z²-1)^1/2+z) and cot^-1(i z)

Involving coth^-1((z²-1)^1/2+z) and cot^-1(i/z)

Involving coth^-1((z²-1)^1/2-z) and cot^-1(i z)

Involving coth^-1((z²-1)^1/2-z) and cot^-1(i/z)