cos(x)=-1/6

Lösung

cos (x) = - \frac{1}{6}

x = 1.73824 \dots + 2 πn, x = - 1.73824 \dots + 2 πn

Grad

x = 99.59406 \dots^{\circ} + 36 0^{\circ} n, x = - 99.59406 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = - \frac{1}{6}

Wende die Eigenschaften der Trigonometrie an

cos (x) = - \frac{1}{6}

Allgemeine Lösung für

cos (x) = - \frac{1}{6}

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

x = arccos (- \frac{1}{6}) + 2 πn, x = - arccos (- \frac{1}{6}) + 2 πn

x = arccos (- \frac{1}{6}) + 2 πn, x = - arccos (- \frac{1}{6}) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.73824 \dots + 2 πn, x = - 1.73824 \dots + 2 πn

cos^{2} (x) + 5 sin^{2} (x) = 1

- 1 = - 4 sec (y) - sec^{2} (y) - 5

cos (X) = 0

2 sin^{2} (x) + cos (2 x) = 4 cos^{2} (x)

6 cos (a) + 18 = 0