DLMF:4.21.E11

MaRDI QIDQ1907

• Label: DLMF:4.21.E11

Digital Library of Mathematical Functions ID 4.21.E11

${\displaystyle{\displaystyle\cot u\pm\cot v=\frac{\sin\left(v\pm u\right)}{\sin u\sin v}.}}$

Symbols List

• ${\displaystyle{\displaystyle\cot\NVar{z}}}$: cotangent function
• ${\displaystyle{\displaystyle\sin\NVar{z}}}$: sine function
 

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