DLMF:4.21.E32

MaRDI QIDQ1949

• Label: DLMF:4.21.E32

Digital Library of Mathematical Functions ID 4.21.E32

${\displaystyle{\displaystyle\sin\left(4z\right)=8{\cos^{3}}z\sin z-4\cos z\sin z,}}$

Symbols List

• ${\displaystyle{\displaystyle\cos\NVar{z}}}$: cosine function
• ${\displaystyle{\displaystyle\sin\NVar{z}}}$: sine function
• ${\displaystyle{\displaystyle z}}$: complex variable
 

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