cos(x)= 7/13

Lösung

cos (x) = \frac{7}{13}

x = 1.00218 \dots + 2 πn, x = 2 π - 1.00218 \dots + 2 πn

Grad

x = 57.42102 \dots^{\circ} + 36 0^{\circ} n, x = 302.57897 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{7}{13}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{7}{13}

Allgemeine Lösung für

cos (x) = \frac{7}{13}

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

x = arccos (\frac{7}{13}) + 2 πn, x = 2 π - arccos (\frac{7}{13}) + 2 πn

x = arccos (\frac{7}{13}) + 2 πn, x = 2 π - arccos (\frac{7}{13}) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.00218 \dots + 2 πn, x = 2 π - 1.00218 \dots + 2 πn

cos (\frac{π}{2} x) = 0

sin (3 θ) - sin (6 θ) = 0

sec (x) = - \frac{2}{3}

csc (2 x) = - 2

tan (θ) = \frac{13}{9}