Difference between revisions of "Double-angle formulas"

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(fixing link to go straight to pdf)
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Double angle formulas:
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* <math> \sin{(2x)} = 2\sin{x}\cos{x} </math>
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* <math> \cos{(2x)} = \cos^2{x} - \sin^2{x} </math>
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* <math> \;\;\;\;\;\;\;\;\;\;\;\;\; = 2\cos^2{x} - 1 </math>
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* <math> \;\;\;\;\;\;\;\;\;\;\;\;\; = 1 - 2\sin^2{x} </math>
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* <math> \tan{(2x)} = \frac{2\tan{x}}{1 - \tan^2{x}} </math>
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==Resources==
 
* [https://mathresearch.utsa.edu/wikiFiles/MAT1093/Double-angle%20formulas/Esparza%201093%20Notes%203.6A.pdf Double-angle formulas]. Written notes created by Professor Esparza, UTSA.
 
* [https://mathresearch.utsa.edu/wikiFiles/MAT1093/Double-angle%20formulas/Esparza%201093%20Notes%203.6A.pdf Double-angle formulas]. Written notes created by Professor Esparza, UTSA.

Revision as of 14:42, 23 September 2021

Double angle formulas:



Resources