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DLMF:4.17.E3 - MaRDI portal

DLMF:4.17.E3 (Q1817)

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DLMF:4.17.E3
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    Statements

    DLMF defining formula
    lim z → 0 ⁡ 1 - cos ⁡ z z 2 = 1 2 . subscript → 𝑧 0 1 𝑧 superscript 𝑧 2 1 2 {\displaystyle{\displaystyle\lim_{z\to 0}\frac{1-\cos z}{z^{2}}=\frac{1}{2}.}}
    0 references
    Symbols used
    cosine function
    DLMF defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2aadec
    0 references
    complex variable
    DLMF defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C4.S1.XMD8.m1bdec
    0 references

    Identifiers

     
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