TommerossaW TommerossaW
  • 21-11-2016
  • Mathematics
contestada

the inverse sine of sin(2pi/3) = 120degrees, correct? ...?

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alsteva alsteva
  • 24-11-2016
[tex]\sin{ \frac{2\pi}{3}} = \frac{ \sqrt{3} }{2} \\ \\ \sin{ \frac{\pi}{3}} = \frac{ \sqrt{3} }{2} \\ \\ - \frac{\pi}{2} \leq \arcsin{ x} \leq \frac{\pi}{2} \\ \\ \arcsin{(\sin{ \frac{2\pi}{3}})}=\arcsin{( \frac{ \sqrt{3} }{2} )}=\frac{\pi}{3}[/tex]
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