Submitted by admin on Sun, 08/30/2020 - 7:16pm
Multiple Angle Identities for Cosine
Each of these identities expresses the cosine function of an angle that is a multiple of another angle in terms of the cosine function of the original angle.
2. 
(Double angle identity for cosine)
3. 
(Triple angle identity for cosine)
4. 
(Quadruple angle identity for cosine)
5. 
(Quintuple angle identity for cosine)
6. 
(Sextuple angle identity for cosine)
7. 
(Septic angle identity for cosine)
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In-Text or Website Citation
Tue N. Vu, Multiple Angle Identities for Cosine from Series Math Study Resource.
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