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DLMF:4.18.E1 - MaRDI portal

DLMF:4.18.E1 (Q1819)

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DLMF:4.18.E1
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    Statements

    DLMF defining formula
    2 ⁢ x π ≤ sin ⁡ x ≤ x , 2 𝑥 𝜋 𝑥 𝑥 {\displaystyle{\displaystyle\frac{2x}{\pi}\leq\sin x\leq x,}}
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    constraint
    0 ≤ x ≤ 1 2 ⁢ π 0 𝑥 1 2 𝜋 {\displaystyle{\displaystyle 0\leq x\leq\frac{1}{2}\pi}}
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    Symbols used
    the ratio of the circumference of a circle to its diameter
    DLMF defining formula
    π {\displaystyle{\displaystyle\pi}}
    xml-id
    C3.S12.E1.m2adec
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    sine function
    DLMF defining formula
    sin ⁡ z 𝑧 {\displaystyle{\displaystyle\sin\NVar{z}}}
    xml-id
    C4.S14.E1.m2adec
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    real variable
    DLMF defining formula
    x 𝑥 {\displaystyle{\displaystyle x}}
    xml-id
    C4.S1.XMD6.m1dec
    0 references

    Identifiers

     
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