Difference between revisions of "Double-angle formulas"
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* <math> \cos{(2x)} = \cos^2{x} - \sin^2{x} </math> | * <math> \cos{(2x)} = \cos^2{x} - \sin^2{x} </math> | ||
| − | + | : <math> \;\;\;\;\;\;\;\;\;\;\;\;\; = 2\cos^2{x} - 1 </math> | |
| − | + | : <math> \;\;\;\;\;\;\;\;\;\;\;\;\; = 1 - 2\sin^2{x} </math> | |
Revision as of 14:43, 23 September 2021
Double angle formulas:
Resources
- Double-angle formulas. Written notes created by Professor Esparza, UTSA.
