cos(x)=-5/6

Lösung

cos (x) = - \frac{5}{6}

x = 2.55590 \dots + 2 πn, x = - 2.55590 \dots + 2 πn

Grad

x = 146.44269 \dots^{\circ} + 36 0^{\circ} n, x = - 146.44269 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = - \frac{5}{6}

Wende die Eigenschaften der Trigonometrie an

cos (x) = - \frac{5}{6}

Allgemeine Lösung für

cos (x) = - \frac{5}{6}

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

x = arccos (- \frac{5}{6}) + 2 πn, x = - arccos (- \frac{5}{6}) + 2 πn

x = arccos (- \frac{5}{6}) + 2 πn, x = - arccos (- \frac{5}{6}) + 2 πn

Zeige Lösungen in Dezimalform

x = 2.55590 \dots + 2 πn, x = - 2.55590 \dots + 2 πn

2 sin (\frac{x}{2}) - 3 = 0

2 sin^{2} (θ) = sin (θ) + 1

2 sec^{2} (x) - 4 = 0

tan (a) = 3

tan (x) + 1 = 3 + 3 cot (x)