DLMF:18.9.E10 (Q5606)

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DLMF:18.9.E10
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    Statements

    ( 1 - x 2 ) U n ( x ) = - 1 2 ( T n + 2 ( x ) - T n ( x ) ) . 1 superscript 𝑥 2 Chebyshev-polynomial-second-kind-U 𝑛 𝑥 1 2 Chebyshev-polynomial-first-kind-T 𝑛 2 𝑥 Chebyshev-polynomial-first-kind-T 𝑛 𝑥 {\displaystyle{\displaystyle(1-x^{2})U_{n}\left(x\right)=-\tfrac{1}{2}\left(T_% {n+2}\left(x\right)-T_{n}\left(x\right)\right).}}
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    DLMF:18.9.E10
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    T n ( x ) Chebyshev-polynomial-first-kind-T 𝑛 𝑥 {\displaystyle{\displaystyle T_{\NVar{n}}\left(\NVar{x}\right)}}
    C18.S3.T1.t1.r4.m2abdec
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    U n ( x ) Chebyshev-polynomial-second-kind-U 𝑛 𝑥 {\displaystyle{\displaystyle U_{\NVar{n}}\left(\NVar{x}\right)}}
    C18.S3.T1.t1.r5.m2abdec
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    n 𝑛 {\displaystyle{\displaystyle n}}
    C18.S1.XMD6.m1jdec
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    x 𝑥 {\displaystyle{\displaystyle x}}
    C18.S2.XMD3.m1idec
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