DLMF:18.18.E21 (Q5811)

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Language	Label	Description	Also known as
English	DLMF:18.18.E21	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle T_{m}\left(x\right)T_{n}\left(x\right)=\tfrac{1}{% 2}(T_{m+n}\left(x\right)+T_{m-n}\left(x\right)).}}

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DLMF:18.18.E21

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Defining formula

{\displaystyle{\displaystyle T_{\NVar{n}}\left(\NVar{x}\right)}}

C18.S3.T1.t1.r4.m2adec

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Defining formula

{\displaystyle{\displaystyle m}}

C18.S1.XMD5.m1bdec

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Defining formula

{\displaystyle{\displaystyle n}}

C18.S1.XMD6.m1tdec

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Sitelinks

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