DLMF:4.21.E8 (Q1710): Difference between revisions

Latest revision as of 17:25, 1 January 2020

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Language	Label	Description	Also known as
English	DLMF:4.21.E8	No description defined

{\displaystyle{\displaystyle\cos u+\cos v=2\cos\left(\frac{u+v}{2}\right)\cos% \left(\frac{u-v}{2}\right),}}

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{\displaystyle{\displaystyle\cos\NVar{z}}}

C4.S14.E2.m2aedec

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@@ Property / Symbols used @@
+cosine function
@@ Property / Symbols used: cosine function / rank @@
+Normal rank
@@ Property / Symbols used: cosine function / qualifier @@
+test:  ${\displaystyle{\displaystyle\cos\NVar{z}}}$ 
\cos@@{\NVar{z}}
@@ Property / Symbols used: cosine function / qualifier @@
+xml-id: C4.S14.E2.m2aedec