Difference between revisions of "Double angle identities"
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| − | ==See Also== | + | == Proof == |
| + | Please try to prove it on your own. | ||
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| + | == See Also == | ||
* [[Trigonometric identities]] | * [[Trigonometric identities]] | ||
Latest revision as of 15:12, 14 February 2025
The trigonometric double-angle identities are easily derived from the angle addition formulas by just letting 
. Doing so yields:
This article is a stub. Help us out by expanding it.
Proof
Please try to prove it on your own.
