DLMF:4.21.E20 (Q1722)

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DLMF:4.21.E20
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    Statements

    Defining formula
    Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle \cos^{2}@@{u}-\sin^{2}@@{v}=\cos@{u+v}\cos@{u-v}.}
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    DLMF id
    DLMF:4.21.E20
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        Retrieved from "https://drmf-beta.wmflabs.org/index.php?title=Item:Q1722&oldid=7722"