DLMF:4.21.E41 (Q1745)

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Language	Label	Description	Also known as
English	DLMF:4.21.E41	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle|\sin z|=({\sin^{2}}x+{\sinh^{2}}y)^{1/2}=\left(% \tfrac{1}{2}\left(\cosh\left(2y\right)-\cos\left(2x\right)\right)\right)^{1/2}% ,}}

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DLMF:4.21.E41

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cosine function

Defining formula

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

C4.S14.E2.m2aacdec

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hyperbolic cosine function

Defining formula

{\displaystyle{\displaystyle\cosh\NVar{z}}}

C4.S28.E2.m2addec

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hyperbolic sine function

Defining formula

{\displaystyle{\displaystyle\sinh\NVar{z}}}

C4.S28.E1.m2addec

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Defining formula

{\displaystyle{\displaystyle\sin\NVar{z}}}

C4.S14.E1.m2aabdec

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Defining formula

{\displaystyle{\displaystyle x}}

C4.S1.XMD6.m1ddec

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Defining formula

{\displaystyle{\displaystyle y}}

C4.S1.XMD7.m1ddec

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Sitelinks

Wikipedia(0 entries)

DRMF related sites(0 entries)

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