cos(x)=-0.71

Lösung

cos (x) = - 0.71

x = 2.36029 \dots + 2 πn, x = - 2.36029 \dots + 2 πn

Grad

x = 135.23491 \dots^{\circ} + 36 0^{\circ} n, x = - 135.23491 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = - 0.71

Wende die Eigenschaften der Trigonometrie an

cos (x) = - 0.71

Allgemeine Lösung für

cos (x) = - 0.71

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

x = arccos (- 0.71) + 2 πn, x = - arccos (- 0.71) + 2 πn

x = arccos (- 0.71) + 2 πn, x = - arccos (- 0.71) + 2 πn

Zeige Lösungen in Dezimalform

x = 2.36029 \dots + 2 πn, x = - 2.36029 \dots + 2 πn

tan (α) = \frac{8}{10}

sin (2 x) + 2 \cdot cos (x) = 0

\frac{6.7}{sin ( 3 3 ^{\circ} )} = \frac{5.4}{sin ( A )}

2 - 3 sin (θ) = 0

cos (x) = - 0.83