cos(x)=0.74

Lösung

cos (x) = 0.74

x = 0.73772 \dots + 2 πn, x = 2 π - 0.73772 \dots + 2 πn

Grad

x = 42.26858 \dots^{\circ} + 36 0^{\circ} n, x = 317.73141 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = 0.74

Wende die Eigenschaften der Trigonometrie an

cos (x) = 0.74

Allgemeine Lösung für

cos (x) = 0.74

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

x = arccos (0.74) + 2 πn, x = 2 π - arccos (0.74) + 2 πn

x = arccos (0.74) + 2 πn, x = 2 π - arccos (0.74) + 2 πn

Zeige Lösungen in Dezimalform

x = 0.73772 \dots + 2 πn, x = 2 π - 0.73772 \dots + 2 πn

- 4 cos^{2} (x) + 6 cos (x) = 2

\frac{6}{π} - 4 sin (2 x) = 0

sin (t) = \frac{1}{5}

sin (θ) = \frac{- 1}{2}

3 (tan (x) + sin^{2} (x)) - 4 = 4 tan (x) - 3 cos^{2} (x)