Trigonometrie

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(trigonometrische Äquivalenzen)
(trigonometrische Äquivalenzen)
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<math>\tan(\varphi) \cdot \cot(\varphi) = 1, \quad \varphi \ne k\cdot 90 ^\circ</math>
<math>\tan(\varphi) \cdot \cot(\varphi) = 1, \quad \varphi \ne k\cdot 90 ^\circ</math>
-
<math>1 + \tan^2(\varphi) = \frac 1 \cos(\varphi), \quad \varphi \ne (2k+1)\cdot 90^\circ)</math>
+
<math>1 + \tan^2(\varphi) = \frac 1 \cos^2(\varphi), \quad \varphi \ne (2k+1)\cdot 90^\circ</math>
 +
<math>1 + \cot^2(\varphi) = \frac 1 \sin^2(\varphi), \quad \varphi \ne k\cdot 180^\circ</math>
[[category:Mathematik]]
[[category:Mathematik]]

Revision as of 21:06, 16 September 2008

trigonometrische Äquivalenzen

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