DLMF:4.21.E15 (Q1717): Difference between revisions

Revision as of 17:25, 1 January 2020

No description defined

Language	Label	Description	Also known as
English	DLMF:4.21.E15	No description defined

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

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

C4.S14.E2.m2aidec

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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.m2aidec