Involving cot-1(1/z1/2)
Involving cot-1(1/z1/2) and csc-1(1+z/1-z)
Involving cot-1(1/z1/2) and csc-1(z+1/z-1)
Involving cot-1(1/z1/2) and csc-1(1+z/2 z1/2)
Involving cot-1(1/z1/2) and csc-1((z+1)1/2)
Involving cot-1(1/z1/2) and csc-1((z+1)1/2/z1/2)
Involving cot-1(1/z1/2) and csc-1((-1-z)1/2/(-z)1/2)
Involving cot-1(1/z1/2) and csc-1(z+1/z1/2)
Involving cot-1(1/z1/2) and csc-1(21/2(1+z)1/4/((z+1)1/2+1)1/2)
Involving cot-1(1/z1/2) and csc-1(21/2(1+z)1/4/((z+1)1/2-1)1/2)
Involving cot-1(1/z1/2) and csc-1((2(1+z)1/2/((1+z)1/2+1))1/2)
Involving cot-1(1/z1/2) and csc-1((2(1+z)1/2/((1+z)1/2-1))1/2)
Involving cot-1(1/z1/2) and csc-1(21/2(1+z)1/4/((1+z)1/2+z1/2)1/2)
Involving cot-1(1/z1/2) and csc-1(21/2(1+z)1/4/((1+z)1/2-z1/2)1/2)
Involving cot-1(1/z1/2) and csc-1((2(1+z)1/2/((1+z)1/2+z1/2))1/2)
Involving cot-1(1/z1/2) and csc-1((2(1+z)1/2/((1+z)1/2-z1/2))1/2)
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