cos(θ)=0.7

Lösung

cos (θ) = 0.7

θ = 0.79539 \dots + 2 πn, θ = 2 π - 0.79539 \dots + 2 πn

Grad

θ = 45.57299 \dots^{\circ} + 36 0^{\circ} n, θ = 314.42700 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (θ) = 0.7

Wende die Eigenschaften der Trigonometrie an

cos (θ) = 0.7

Allgemeine Lösung für

cos (θ) = 0.7

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

θ = arccos (0.7) + 2 πn, θ = 2 π - arccos (0.7) + 2 πn

θ = arccos (0.7) + 2 πn, θ = 2 π - arccos (0.7) + 2 πn

Zeige Lösungen in Dezimalform

θ = 0.79539 \dots + 2 πn, θ = 2 π - 0.79539 \dots + 2 πn

2 cos (5 x) - 1 = 0

2 sin (x) cos (x) = 2 cos (x)

sin ((3 θ + 72)^{\circ}) = cos (4 8^{\circ})

cos (2 θ) = sin (θ)

4 cos^{2} (x) - 4 cos (x) - 1 = 0