cos(θ)=-0.8722

Lösung

cos (θ) = - 0.8722

θ = 2.63047 \dots + 2 πn, θ = - 2.63047 \dots + 2 πn

Grad

θ = 150.71530 \dots^{\circ} + 36 0^{\circ} n, θ = - 150.71530 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (θ) = - 0.8722

Wende die Eigenschaften der Trigonometrie an

cos (θ) = - 0.8722

Allgemeine Lösung für

cos (θ) = - 0.8722

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

θ = arccos (- 0.8722) + 2 πn, θ = - arccos (- 0.8722) + 2 πn

θ = arccos (- 0.8722) + 2 πn, θ = - arccos (- 0.8722) + 2 πn

Zeige Lösungen in Dezimalform

θ = 2.63047 \dots + 2 πn, θ = - 2.63047 \dots + 2 πn

3 cos (x) + 2 sin (x) cos (x) = 0

(tan (x) - 1) (2 cos (x) + 1) = 0

cot (θ) = - 3, sin (θ) < 0

tan (x) sin (x) + cos (x) = 1

6 sin (t) = 0