DLMF:4.35.E14 (Q1888)

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DLMF:4.35.E14
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    Statements

    test
    2 ⁢ sinh ⁡ u ⁢ sinh ⁡ v = cosh ⁡ ( u + v ) - cosh ⁡ ( u - v ) , 2 𝑢 𝑣 𝑢 𝑣 𝑢 𝑣 {\displaystyle{\displaystyle 2\sinh u\sinh v=\cosh\left(u+v\right)-\cosh\left(% u-v\right),}}
    0 references
    DLMF id
    DLMF:4.35.E14
    0 references
    Symbols used
    hyperbolic cosine function
    test
    cosh ⁡ z 𝑧 {\displaystyle{\displaystyle\cosh\NVar{z}}}
    xml-id
    C4.S28.E2.m2ahdec
    0 references
    hyperbolic sine function
    test
    sinh ⁡ z 𝑧 {\displaystyle{\displaystyle\sinh\NVar{z}}}
    xml-id
    C4.S28.E1.m2ahdec
    0 references
     
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