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 Cot

 http://functions.wolfram.com/01.09.21.0105.01

 Input Form

 Integrate[Sqrt[a - a Cos[2 c z]] Cot[c z], z] == Sqrt[a - a Cos[2 c z]]/c

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["\[Integral]", RowBox[List[SqrtBox[RowBox[List["a", "-", RowBox[List["a", " ", RowBox[List["Cos", "[", RowBox[List["2", " ", "c", " ", "z"]], "]"]]]]]]], " ", RowBox[List["Cot", "[", RowBox[List["c", " ", "z"]], "]"]], RowBox[List["\[DifferentialD]", "z"]]]]]], "\[Equal]", FractionBox[SqrtBox[RowBox[List["a", "-", RowBox[List["a", " ", RowBox[List["Cos", "[", RowBox[List["2", " ", "c", " ", "z"]], "]"]]]]]]], "c"]]]]]

 MathML Form

 a - a cos ( 2 c z ) cot ( c z ) z a - a cos ( 2 c z ) c z a -1 a 2 c z 1 2 c z a -1 a 2 c z 1 2 c -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["\[Integral]", RowBox[List[RowBox[List[SqrtBox[RowBox[List["a_", "-", RowBox[List["a_", " ", RowBox[List["Cos", "[", RowBox[List["2", " ", "c_", " ", "z_"]], "]"]]]]]]], " ", RowBox[List["Cot", "[", RowBox[List["c_", " ", "z_"]], "]"]]]], RowBox[List["\[DifferentialD]", "z_"]]]]]], "]"]], "\[RuleDelayed]", FractionBox[SqrtBox[RowBox[List["a", "-", RowBox[List["a", " ", RowBox[List["Cos", "[", RowBox[List["2", " ", "c", " ", "z"]], "]"]]]]]]], "c"]]]]]

 Date Added to functions.wolfram.com (modification date)

 2002-12-18