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http://functions.wolfram.com/01.01.16.0017.01
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Sqrt[(a + z)/(b + z)] == Sqrt[(a + z)/(b - a)]/Sqrt[(b + z)/(b - a)] /;
Element[a - b, Reals] && a != b
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Cell[BoxData[RowBox[List[RowBox[List[SqrtBox[FractionBox[RowBox[List["a", "+", "z"]], RowBox[List["b", "+", "z"]]]], "\[Equal]", FractionBox[SqrtBox[FractionBox[RowBox[List["a", "+", "z"]], RowBox[List["b", "-", "a"]]]], SqrtBox[FractionBox[RowBox[List["b", "+", "z"]], RowBox[List["b", "-", "a"]]]]]]], "/;", RowBox[List[RowBox[List[RowBox[List["a", "-", "b"]], "\[Element]", "Reals"]], "\[And]", RowBox[List["a", "\[NotEqual]", "b"]]]]]]]]
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<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <msqrt> <mfrac> <mrow> <mi> a </mi> <mo> + </mo> <mi> z </mi> </mrow> <mrow> <mi> b </mi> <mo> + </mo> <mi> z </mi> </mrow> </mfrac> </msqrt> <mo> ⩵ </mo> <mrow> <mfrac> <mn> 1 </mn> <msqrt> <mfrac> <mrow> <mi> b </mi> <mo> + </mo> <mi> z </mi> </mrow> <mrow> <mi> b </mi> <mo> - </mo> <mi> a </mi> </mrow> </mfrac> </msqrt> </mfrac> <mo> ⁢ </mo> <msqrt> <mfrac> <mrow> <mi> a </mi> <mo> + </mo> <mi> z </mi> </mrow> <mrow> <mi> b </mi> <mo> - </mo> <mi> a </mi> </mrow> </mfrac> </msqrt> </mrow> </mrow> <mo> /; </mo> <mrow> <mrow> <mrow> <mi> a </mi> <mo> - </mo> <mi> b </mi> </mrow> <mo> ∈ </mo> <semantics> <mi> ℝ </mi> <annotation encoding='Mathematica'> TagBox["\[DoubleStruckCapitalR]", Function[Reals]] </annotation> </semantics> </mrow> <mo> ∧ </mo> <mrow> <mi> a </mi> <mo> ≠ </mo> <mi> b </mi> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <apply> <power /> <apply> <times /> <apply> <plus /> <ci> a </ci> <ci> z </ci> </apply> <apply> <power /> <apply> <plus /> <ci> b </ci> <ci> z </ci> </apply> <cn type='integer'> -1 </cn> </apply> </apply> <cn type='rational'> 1 <sep /> 2 </cn> </apply> <apply> <times /> <apply> <times /> <cn type='integer'> 1 </cn> <apply> <power /> <apply> <power /> <apply> <times /> <apply> <plus /> <ci> b </ci> <ci> z </ci> </apply> <apply> <power /> <apply> <plus /> <ci> b </ci> <apply> <times /> <cn type='integer'> -1 </cn> <ci> a </ci> </apply> </apply> <cn type='integer'> -1 </cn> </apply> </apply> <cn type='rational'> 1 <sep /> 2 </cn> </apply> <cn type='integer'> -1 </cn> </apply> </apply> <apply> <power /> <apply> <times /> <apply> <plus /> <ci> a </ci> <ci> z </ci> </apply> <apply> <power /> <apply> <plus /> <ci> b </ci> <apply> <times /> <cn type='integer'> -1 </cn> <ci> a </ci> </apply> </apply> <cn type='integer'> -1 </cn> </apply> </apply> <cn type='rational'> 1 <sep /> 2 </cn> </apply> </apply> </apply> <apply> <and /> <apply> <in /> <apply> <plus /> <ci> a </ci> <apply> <times /> <cn type='integer'> -1 </cn> <ci> b </ci> </apply> </apply> <reals /> </apply> <apply> <neq /> <ci> a </ci> <ci> b </ci> </apply> </apply> </apply> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", SqrtBox[FractionBox[RowBox[List["a_", "+", "z_"]], RowBox[List["b_", "+", "z_"]]]], "]"]], "\[RuleDelayed]", RowBox[List[FractionBox[SqrtBox[FractionBox[RowBox[List["a", "+", "z"]], RowBox[List["b", "-", "a"]]]], SqrtBox[FractionBox[RowBox[List["b", "+", "z"]], RowBox[List["b", "-", "a"]]]]], "/;", RowBox[List[RowBox[List[RowBox[List["a", "-", "b"]], "\[Element]", "Reals"]], "&&", RowBox[List["a", "\[NotEqual]", "b"]]]]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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