Nullstelle < Trigonometr. Fktn < Analysis < Oberstufe < Schule < Mathe < Vorhilfe
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(Frage) beantwortet | Datum: | 14:08 Fr 12.06.2009 | Autor: | Dinker |
Guten Nachmittag
f(x) = 4 [mm] sin(\bruch{1}{2}x [/mm] + [mm] \bruch{\pi}{6}) [/mm] + 4
z = [mm] \bruch{1}{2}x [/mm] + [mm] \bruch{\pi}{6}
[/mm]
-1 = sin z
z = - [mm] \bruch{\pi}{2} [/mm] + [mm] 2k\pi
[/mm]
[mm] \bruch{1}{2}x [/mm] + [mm] \bruch{\pi}{6} [/mm] = - [mm] \bruch{\pi}{2} [/mm] + [mm] 2k\pi
[/mm]
3x = - 4 [mm] \pi [/mm] + [mm] 12k\pi
[/mm]
x = - [mm] \bruch{4}{3} \pi [/mm] + [mm] 4k\pi
[/mm]
Was ist da falsch?
Danke
gruss Dinker
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