cos(θ)=-0.6

Lösung

cos (θ) = - 0.6

θ = 2.21429 \dots + 2 πn, θ = - 2.21429 \dots + 2 πn

Grad

θ = 126.86989 \dots^{\circ} + 36 0^{\circ} n, θ = - 126.86989 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (θ) = - 0.6

Wende die Eigenschaften der Trigonometrie an

cos (θ) = - 0.6

Allgemeine Lösung für

cos (θ) = - 0.6

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

θ = arccos (- 0.6) + 2 πn, θ = - arccos (- 0.6) + 2 πn

θ = arccos (- 0.6) + 2 πn, θ = - arccos (- 0.6) + 2 πn

Zeige Lösungen in Dezimalform

θ = 2.21429 \dots + 2 πn, θ = - 2.21429 \dots + 2 πn

3 cos (3 x) - 15 sin (3 x) = 0

2 tan (x) - 3 cot (x) = 0

8 sin (2 x) + 15 cos (x) = 0

cos (\frac{x}{2}) - 2 cos (x) - 2 = 0

8 \cdot cos^{2} (3 x) + 6 \cdot cos (6 x) = 10216