Involving tan-1(1/z1/2)
Involving tan-1(1/z1/2) and cosh-1(1-z/1+z)
Involving tan-1(1/z1/2) and cosh-1(z-1/z+1)
Involving tan-1(1/z1/2) and cosh-1(2 z1/2/1+z)
Involving tan-1(1/z1/2) and cosh-1(1/(1+z)1/2)
Involving tan-1(1/z1/2) and cosh-1(1/1+z1/2)
Involving tan-1(1/z1/2) and cosh-1(z1/2/(z+1)1/2)
Involving tan-1(1/z1/2) and cosh-1((-z)1/2/(-z-1)1/2)
Involving tan-1(1/z1/2) and cosh-1(z/z+11/2)
Involving tan-1(1/z1/2) and cosh-1(((1+z)1/2+1)1/2/(21/2(1+z)1/4))
Involving tan-1(1/z1/2) and cosh-1(((1+z)1/2-1)1/2/(21/2(1+z)1/4))
Involving tan-1(1/z1/2) and cosh-1((((1+z)1/2+1)/(2(1+z)1/2))1/2)
Involving tan-1(1/z1/2) and cosh-1((((1+z)1/2-1)/(2(1+z)1/2))1/2)
Involving tan-1(1/z1/2) and cosh-1(((1+z)1/2+z1/2)1/2/(21/2(1+z)1/4))
Involving tan-1(1/z1/2) and cosh-1(((1+z)1/2-z1/2)1/2/(21/2(1+z)1/4))
Involving tan-1(1/z1/2) and cosh-1((((1+z)1/2+z1/2)/(2(1+z)1/2))1/2)
Involving tan-1(1/z1/2) and cosh-1((((1+z)1/2-z1/2)/(2(1+z)1/2))1/2)
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