DLMF:4.21.E14 (Q1716)

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DLMF:4.21.E14
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    Statements

    Defining formula
    csc 2 ⁡ z = 1 + cot 2 ⁡ z . 2 𝑧 1 2 𝑧 {\displaystyle{\displaystyle{\csc^{2}}z=1+{\cot^{2}}z.}}
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    DLMF id
    DLMF:4.21.E14
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    Symbols used
    cosecant function
    Defining formula
    csc ⁡ z 𝑧 {\displaystyle{\displaystyle\csc\NVar{z}}}
    xml-id
    C4.S14.E5.m2adec
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    cotangent function
    Defining formula
    cot ⁡ z 𝑧 {\displaystyle{\displaystyle\cot\NVar{z}}}
    xml-id
    C4.S14.E7.m2abdec
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