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Beliebt Trigonometrie >

sec^2(x)=9

Lösung

sec^{2} (x) = 9

Lösung

x = 1.23095 \dots + 2 πn, x = 2 π - 1.23095 \dots + 2 πn, x = 1.91063 \dots + 2 πn, x = - 1.91063 \dots + 2 πn

+1

Grad

x = 70.52877 \dots^{\circ} + 36 0^{\circ} n, x = 289.47122 \dots^{\circ} + 36 0^{\circ} n, x = 109.47122 \dots^{\circ} + 36 0^{\circ} n, x = - 109.47122 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

sec^{2} (x) = 9

Löse mit Substitution

sec^{2} (x) = 9

Angenommen:

sec (x) = u

u^{2} = 9

u^{2} = 9 : u = 3, u = - 3

u^{2} = 9

Für

x^{2} = f (a)

sind die Lösungen

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

u = 9, u = - 9

9 = 3

9

Faktorisiere die Zahl:

9 = 3^{2}

= 3^{2}

Wende Radikal Regel an:

n a^{n} = a

3^{2} = 3

= 3

- 9 = - 3

- 9

9 = 3

9

Faktorisiere die Zahl:

9 = 3^{2}

= 3^{2}

Wende Radikal Regel an:

n a^{n} = a

3^{2} = 3

= 3

= - 3

u = 3, u = - 3

Setze in

u = sec (x)

ein

sec (x) = 3, sec (x) = - 3

sec (x) = 3, sec (x) = - 3

sec (x) = 3 : x = arcsec (3) + 2 πn, x = 2 π - arcsec (3) + 2 πn

sec (x) = 3

Wende die Eigenschaften der Trigonometrie an

sec (x) = 3

Allgemeine Lösung für

sec (x) = 3

sec (x) = a \Rightarrow x = arcsec (a) + 2 πn, x = 2 π - arcsec (a) + 2 πn

x = arcsec (3) + 2 πn, x = 2 π - arcsec (3) + 2 πn

x = arcsec (3) + 2 πn, x = 2 π - arcsec (3) + 2 πn

sec (x) = - 3 : x = arcsec (- 3) + 2 πn, x = - arcsec (- 3) + 2 πn

sec (x) = - 3

Wende die Eigenschaften der Trigonometrie an

sec (x) = - 3

Allgemeine Lösung für

sec (x) = - 3

sec (x) = - a \Rightarrow x = arcsec (- a) + 2 πn, x = - arcsec (- a) + 2 πn

x = arcsec (- 3) + 2 πn, x = - arcsec (- 3) + 2 πn

x = arcsec (- 3) + 2 πn, x = - arcsec (- 3) + 2 πn

Kombiniere alle Lösungen

x = arcsec (3) + 2 πn, x = 2 π - arcsec (3) + 2 πn, x = arcsec (- 3) + 2 πn, x = - arcsec (- 3) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.23095 \dots + 2 πn, x = 2 π - 1.23095 \dots + 2 πn, x = 1.91063 \dots + 2 πn, x = - 1.91063 \dots + 2 πn

Graph

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