Trigonometrie
From SkyWiki
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<math>\cos(\alpha + \beta) = \cos\alpha \cos\beta - \sin\alpha \sin\beta</math> | <math>\cos(\alpha + \beta) = \cos\alpha \cos\beta - \sin\alpha \sin\beta</math> | ||
| - | <math>\tan(\alpha + \beta) = \frac{\tan\alpha + \tan\beta} {1 - \tan\alpha \tan\beta}</math> | + | <math>\tan(\alpha + \beta) = \frac{\tan\alpha + \tan\beta} {1 - \tan\alpha\, \tan\beta}</math> |
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| + | <math>\sin(\alpha - \beta) = \sin\alpha \cos\beta - \cos\alpha \sin\beta</math> | ||
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| + | <math>\cos(\alpha - \beta) = \cos\alpha \cos\beta + \sin\alpha \sin\beta</math> | ||
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| + | <math>\tan(\alpha - \beta) = \frac{\tan\alpha - \tan\beta} {1 + \tan\alpha\, \tan\beta}</math> | ||
[[category:Mathematik]] | [[category:Mathematik]] | ||
Revision as of 21:22, 16 September 2008
trigonometrische Äquivalenzen
Additionstheoreme
