Lösung 4.2:5c

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If we express the angle 330° in radians, we obtain
If we express the angle 330° in radians, we obtain
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{{Displayed math||<math>330^{\circ} = 330^{\circ}\cdot \frac{\pi}{180^{\circ}}\ \text{radians} = \frac{11\pi}{6}\ \text{radians}</math>}}
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{{Abgesetzte Formel||<math>330^{\circ} = 330^{\circ}\cdot \frac{\pi}{180^{\circ}}\ \text{radians} = \frac{11\pi}{6}\ \text{radians}</math>}}
and from exercise 3.3:1g, we know that
and from exercise 3.3:1g, we know that
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{{Displayed math||<math>\cos 330^{\circ} = \cos \frac{11\pi}{6} = \frac{\sqrt{3}}{2}\,\textrm{.}</math>}}
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{{Abgesetzte Formel||<math>\cos 330^{\circ} = \cos \frac{11\pi}{6} = \frac{\sqrt{3}}{2}\,\textrm{.}</math>}}

Version vom 08:53, 22. Okt. 2008

If we express the angle 330° in radians, we obtain

\displaystyle 330^{\circ} = 330^{\circ}\cdot \frac{\pi}{180^{\circ}}\ \text{radians} = \frac{11\pi}{6}\ \text{radians}

and from exercise 3.3:1g, we know that

\displaystyle \cos 330^{\circ} = \cos \frac{11\pi}{6} = \frac{\sqrt{3}}{2}\,\textrm{.}
Von „http://wiki.sommarmatte.se/wikis/2009/bridgecourse1-TU-Berlin/index.php/L%C3%B6sung_4.2:5c“