cos(x)=-5/8

Lösung

cos (x) = - \frac{5}{8}

x = 2.24592 \dots + 2 πn, x = - 2.24592 \dots + 2 πn

Grad

x = 128.68218 \dots^{\circ} + 36 0^{\circ} n, x = - 128.68218 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = - \frac{5}{8}

Wende die Eigenschaften der Trigonometrie an

cos (x) = - \frac{5}{8}

Allgemeine Lösung für

cos (x) = - \frac{5}{8}

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

x = arccos (- \frac{5}{8}) + 2 πn, x = - arccos (- \frac{5}{8}) + 2 πn

x = arccos (- \frac{5}{8}) + 2 πn, x = - arccos (- \frac{5}{8}) + 2 πn

Zeige Lösungen in Dezimalform

x = 2.24592 \dots + 2 πn, x = - 2.24592 \dots + 2 πn

cos (x) = 0.17

cos (x) = 0.18

tan (x) - 2 = 3, 0^{\circ} \leq x \leq 36 0^{\circ}

1 = 4 - 6 sin (x)

2 - sin (2 θ) = 4 sin (2 θ)