Involving sech^{-1}(2^{1/2}(1+z^{2})^{1/4}/((1+z^{2})^{1/2}-1)^{1/2})
Involving sech^{-1}(2^{1/2}(1+z^{2})^{1/4}/((1+z^{2})^{1/2}-1)^{1/2}) and tan^{-1}(z)
Involving sech^{-1}(2^{1/2}(1+z^{2})^{1/4}/((1+z^{2})^{1/2}-1)^{1/2}) and tan^{-1}(1/z)