DLMF:4.21.E33 (Q1735): Difference between revisions

From DRMF
Jump to navigation Jump to search
← Older edit
‎Changed an Item: Add constraint
‎Changed an Item: Add constraint
 
Property / Symbols used
 
Property / Symbols used: Q11217 / rank
 
Normal rank
Property / Symbols used: Q11217 / qualifier
 
Defining formula:

z 𝑧 {\displaystyle{\displaystyle z}}

z
Property / Symbols used: Q11217 / qualifier
 
xml-id: C4.S1.XMD8.m1odec

Latest revision as of 18:27, 1 January 2020

No description defined
Language Label Description Also known as
English
DLMF:4.21.E33
No description defined

    Statements

    Defining formula
    cos ⁡ ( 4 ⁢ z ) = 8 ⁢ cos 4 ⁡ z - 8 ⁢ cos 2 ⁡ z + 1 . 4 𝑧 8 4 𝑧 8 2 𝑧 1 {\displaystyle{\displaystyle\cos\left(4z\right)=8{\cos^{4}}z-8{\cos^{2}}z+1.}}
    0 references
    DLMF id
    DLMF:4.21.E33
    0 references
    Symbols used
    cosine function
    Defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2avdec
    0 references
    Q11217
    Defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C4.S1.XMD8.m1odec
    0 references
     
        Retrieved from "https://drmf-beta.wmflabs.org/index.php?title=Item:Q1735&oldid=27290"