cos(θ)=0.9

Lösung

cos (θ) = 0.9

θ = 0.45102 \dots + 2 πn, θ = 2 π - 0.45102 \dots + 2 πn

Grad

θ = 25.84193 \dots^{\circ} + 36 0^{\circ} n, θ = 334.15806 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (θ) = 0.9

Wende die Eigenschaften der Trigonometrie an

cos (θ) = 0.9

Allgemeine Lösung für

cos (θ) = 0.9

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

θ = arccos (0.9) + 2 πn, θ = 2 π - arccos (0.9) + 2 πn

θ = arccos (0.9) + 2 πn, θ = 2 π - arccos (0.9) + 2 πn

Zeige Lösungen in Dezimalform

θ = 0.45102 \dots + 2 πn, θ = 2 π - 0.45102 \dots + 2 πn

4 - 4 sin (θ) = 4

4 cos (x) sin (x) = - 5 sin (x)

2 sin (x) + cot (x) - csc (x) = 0

cosh (x) = \frac{5}{3}

2 cos^{2} (x) - 3 sin (x) + 2 = 0