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Beliebt Trigonometrie >

sin^2(x)-2/3 =0

Lösung

sin^{2} (x) - \frac{2}{3} = 0

Lösung

x = 0.95531 \dots + 2 πn, x = π - 0.95531 \dots + 2 πn, x = - 0.95531 \dots + 2 πn, x = π + 0.95531 \dots + 2 πn

+1

Grad

x = 54.73561 \dots^{\circ} + 36 0^{\circ} n, x = 125.26438 \dots^{\circ} + 36 0^{\circ} n, x = - 54.73561 \dots^{\circ} + 36 0^{\circ} n, x = 234.73561 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

sin^{2} (x) - \frac{2}{3} = 0

Löse mit Substitution

sin^{2} (x) - \frac{2}{3} = 0

Angenommen:

sin (x) = u

u^{2} - \frac{2}{3} = 0

u^{2} - \frac{2}{3} = 0 : u = \frac{2}{3}, u = - \frac{2}{3}

u^{2} - \frac{2}{3} = 0

Verschiebe

\frac{2}{3}

auf die rechte Seite

u^{2} - \frac{2}{3} = 0

Füge

\frac{2}{3}

zu beiden Seiten hinzu

u^{2} - \frac{2}{3} + \frac{2}{3} = 0 + \frac{2}{3}

Vereinfache

u^{2} = \frac{2}{3}

u^{2} = \frac{2}{3}

Für

x^{2} = f (a)

sind die Lösungen

x = f (a), - f (a)

u = \frac{2}{3}, u = - \frac{2}{3}

Setze in

u = sin (x)

ein

sin (x) = \frac{2}{3}, sin (x) = - \frac{2}{3}

sin (x) = \frac{2}{3}, sin (x) = - \frac{2}{3}

sin (x) = \frac{2}{3} : x = arcsin (\frac{2}{3}) + 2 πn, x = π - arcsin (\frac{2}{3}) + 2 πn

sin (x) = \frac{2}{3}

Wende die Eigenschaften der Trigonometrie an

sin (x) = \frac{2}{3}

Allgemeine Lösung für

sin (x) = \frac{2}{3}

sin (x) = a \Rightarrow x = arcsin (a) + 2 πn, x = π - arcsin (a) + 2 πn

x = arcsin (\frac{2}{3}) + 2 πn, x = π - arcsin (\frac{2}{3}) + 2 πn

x = arcsin (\frac{2}{3}) + 2 πn, x = π - arcsin (\frac{2}{3}) + 2 πn

sin (x) = - \frac{2}{3} : x = arcsin (- \frac{2}{3}) + 2 πn, x = π + arcsin (\frac{2}{3}) + 2 πn

sin (x) = - \frac{2}{3}

Wende die Eigenschaften der Trigonometrie an

sin (x) = - \frac{2}{3}

Allgemeine Lösung für

sin (x) = - \frac{2}{3}

sin (x) = - a \Rightarrow x = arcsin (- a) + 2 πn, x = π + arcsin (a) + 2 πn

x = arcsin (- \frac{2}{3}) + 2 πn, x = π + arcsin (\frac{2}{3}) + 2 πn

x = arcsin (- \frac{2}{3}) + 2 πn, x = π + arcsin (\frac{2}{3}) + 2 πn

Kombiniere alle Lösungen

x = arcsin (\frac{2}{3}) + 2 πn, x = π - arcsin (\frac{2}{3}) + 2 πn, x = arcsin (- \frac{2}{3}) + 2 πn, x = π + arcsin (\frac{2}{3}) + 2 πn

Zeige Lösungen in Dezimalform

x = 0.95531 \dots + 2 πn, x = π - 0.95531 \dots + 2 πn, x = - 0.95531 \dots + 2 πn, x = π + 0.95531 \dots + 2 πn

Graph

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