cos(x)= 3/7

Lösung

cos (x) = \frac{3}{7}

x = 1.12788 \dots + 2 πn, x = 2 π - 1.12788 \dots + 2 πn

Grad

x = 64.62306 \dots^{\circ} + 36 0^{\circ} n, x = 295.37693 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{3}{7}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{3}{7}

Allgemeine Lösung für

cos (x) = \frac{3}{7}

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

x = arccos (\frac{3}{7}) + 2 πn, x = 2 π - arccos (\frac{3}{7}) + 2 πn

x = arccos (\frac{3}{7}) + 2 πn, x = 2 π - arccos (\frac{3}{7}) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.12788 \dots + 2 πn, x = 2 π - 1.12788 \dots + 2 πn

tan (\frac{x}{4}) + 3 = 0

4 sin^{2} (x) tan (x) = tan (x)

cos (- x) = - cos (x)

9 sin (x) tan (x) = - 4 tan (x)

tan^{2} (θ) - 3 tan (θ) = 0