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 Csc

 http://functions.wolfram.com/01.10.21.0163.01

 Input Form

 Integrate[Csc[t], {t, Pi/4, Pi/2}] == (1/2) (Log[Sqrt[2] + 2] - Log[2 - Sqrt[2]])

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[SubsuperscriptBox["\[Integral]", FractionBox["\[Pi]", "4"], FractionBox["\[Pi]", "2"]], RowBox[List[RowBox[List["Csc", "[", "t", "]"]], RowBox[List["\[DifferentialD]", "t"]]]]]], "\[Equal]", RowBox[List[FractionBox["1", "2"], " ", RowBox[List["(", RowBox[List[RowBox[List["Log", "[", RowBox[List[SqrtBox["2"], "+", "2"]], "]"]], "-", RowBox[List["Log", "[", RowBox[List["2", "-", SqrtBox["2"]]], "]"]]]], ")"]]]]]]]]

 MathML Form

 π 4 π 2 csc ( t ) t 1 2 ( log ( 2 + 2 ) - log ( 2 - 2 ) ) t 4 -1 2 -1 t 1 2 2 1 2 2 -1 2 -1 2 1 2 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[SubsuperscriptBox["\[Integral]", FractionBox["\[Pi]", "4"], FractionBox["\[Pi]", "2"]], RowBox[List[RowBox[List["Csc", "[", "t_", "]"]], RowBox[List["\[DifferentialD]", "t_"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List[FractionBox["1", "2"], " ", RowBox[List["(", RowBox[List[RowBox[List["Log", "[", RowBox[List[SqrtBox["2"], "+", "2"]], "]"]], "-", RowBox[List["Log", "[", RowBox[List["2", "-", SqrtBox["2"]]], "]"]]]], ")"]]]]]]]]

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

 2007-05-02