cos(x)= 11/14

Lösung

cos (x) = \frac{11}{14}

x = 0.66694 \dots + 2 πn, x = 2 π - 0.66694 \dots + 2 πn

Grad

x = 38.21321 \dots^{\circ} + 36 0^{\circ} n, x = 321.78678 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{11}{14}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{11}{14}

Allgemeine Lösung für

cos (x) = \frac{11}{14}

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

x = arccos (\frac{11}{14}) + 2 πn, x = 2 π - arccos (\frac{11}{14}) + 2 πn

x = arccos (\frac{11}{14}) + 2 πn, x = 2 π - arccos (\frac{11}{14}) + 2 πn

Zeige Lösungen in Dezimalform

x = 0.66694 \dots + 2 πn, x = 2 π - 0.66694 \dots + 2 πn

cot (3 8^{\circ}) = tan (2 x)

cos (θ) = 0.8126

cos (θ) = - \frac{4}{5}, tan (θ) < 0

16 sin^{2} (x) = 8

cos (x) = \frac{( 2 )}{2}