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http://functions.wolfram.com/01.06.16.0118.01
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a Sin[z] + b Cos[z] == a Sqrt[1 + b^2/a^2] Sin[z + ArcTan[b/a]]
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Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["a", " ", RowBox[List["Sin", "[", "z", "]"]]]], "+", RowBox[List["b", " ", RowBox[List["Cos", "[", "z", "]"]]]]]], "\[Equal]", RowBox[List["a", SqrtBox[RowBox[List["1", "+", FractionBox[SuperscriptBox["b", "2"], SuperscriptBox["a", "2"]]]]], RowBox[List["Sin", "[", RowBox[List["z", "+", RowBox[List["ArcTan", "[", RowBox[List["b", "/", "a"]], "]"]]]], "]"]]]]]]]]
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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> <mrow> <mi> a </mi> <mo> ⁢ </mo> <mrow> <mi> sin </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> </mrow> <mo> + </mo> <mrow> <mi> b </mi> <mo> ⁢ </mo> <mrow> <mi> cos </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> </mrow> </mrow> <mo> ⩵ </mo> <mrow> <mi> a </mi> <mo> ⁢ </mo> <msqrt> <mrow> <mn> 1 </mn> <mo> + </mo> <mfrac> <msup> <mi> b </mi> <mn> 2 </mn> </msup> <msup> <mi> a </mi> <mn> 2 </mn> </msup> </mfrac> </mrow> </msqrt> <mo> ⁢ </mo> <mrow> <mi> sin </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> z </mi> <mo> + </mo> <mrow> <msup> <mi> tan </mi> <mrow> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> <mo> ( </mo> <mfrac> <mi> b </mi> <mi> a </mi> </mfrac> <mo> ) </mo> </mrow> </mrow> <mo> ) </mo> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <plus /> <apply> <times /> <ci> a </ci> <apply> <sin /> <ci> z </ci> </apply> </apply> <apply> <times /> <ci> b </ci> <apply> <cos /> <ci> z </ci> </apply> </apply> </apply> <apply> <times /> <ci> a </ci> <apply> <power /> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <apply> <power /> <ci> b </ci> <cn type='integer'> 2 </cn> </apply> <apply> <power /> <apply> <power /> <ci> a </ci> <cn type='integer'> 2 </cn> </apply> <cn type='integer'> -1 </cn> </apply> </apply> </apply> <cn type='rational'> 1 <sep /> 2 </cn> </apply> <apply> <sin /> <apply> <plus /> <ci> z </ci> <apply> <arctan /> <apply> <times /> <ci> b </ci> <apply> <power /> <ci> a </ci> <cn type='integer'> -1 </cn> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["a_", " ", RowBox[List["Sin", "[", "z_", "]"]]]], "+", RowBox[List["b_", " ", RowBox[List["Cos", "[", "z_", "]"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List["a", " ", SqrtBox[RowBox[List["1", "+", FractionBox[SuperscriptBox["b", "2"], SuperscriptBox["a", "2"]]]]], " ", RowBox[List["Sin", "[", RowBox[List["z", "+", RowBox[List["ArcTan", "[", FractionBox["b", "a"], "]"]]]], "]"]]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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