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Beliebt Trigonometrie >

cos(x)= 9/19

Lösung

cos (x) = \frac{9}{19}

Lösung

x = 1.07732 \dots + 2 πn, x = 2 π - 1.07732 \dots + 2 πn

+1

Grad

x = 61.72628 \dots^{\circ} + 36 0^{\circ} n, x = 298.27371 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{9}{19}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{9}{19}

Allgemeine Lösung für

cos (x) = \frac{9}{19}

cos (x) = a \Rightarrow x = arccos (a) + 2 πn, x = 2 π - arccos (a) + 2 πn

x = arccos (\frac{9}{19}) + 2 πn, x = 2 π - arccos (\frac{9}{19}) + 2 πn

x = arccos (\frac{9}{19}) + 2 πn, x = 2 π - arccos (\frac{9}{19}) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.07732 \dots + 2 πn, x = 2 π - 1.07732 \dots + 2 πn

Graph

Beliebte Beispiele

cos (2 θ) = \frac{1}{4}

sec (θ) = \frac{25}{7}

sec(x)=3,(3pi)/2 <= x<= 2pi

sec (x) = 3, \frac{3 π}{2} \leq x \leq 2 π

tan(2x)=cot(3x)

tan (2 x) = cot (3 x)

cos^2(β)-cot^2(β)=cos^2(β)cot^2(β)

cos^{2} (β) - cot^{2} (β) = cos^{2} (β) cot^{2} (β)