cos(t)=-3/5

Lösung

cos (t) = - \frac{3}{5}

t = 2.21429 \dots + 2 πn, t = - 2.21429 \dots + 2 πn

Grad

t = 126.86989 \dots^{\circ} + 36 0^{\circ} n, t = - 126.86989 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (t) = - \frac{3}{5}

Wende die Eigenschaften der Trigonometrie an

cos (t) = - \frac{3}{5}

Allgemeine Lösung für

cos (t) = - \frac{3}{5}

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

t = arccos (- \frac{3}{5}) + 2 πn, t = - arccos (- \frac{3}{5}) + 2 πn

t = arccos (- \frac{3}{5}) + 2 πn, t = - arccos (- \frac{3}{5}) + 2 πn

Zeige Lösungen in Dezimalform

t = 2.21429 \dots + 2 πn, t = - 2.21429 \dots + 2 πn

\frac{35}{sin ( 9 0 ^{\circ} )} = \frac{27}{sin ( y )}

4 cos^{2} (x) + 2 cos (x) - 22 cos (x) = 2

sin (x + 2 0^{\circ}) \cdot csc (7 0^{\circ}) = 1

sec^{2} (t) = 0

so l v e f or x, t = tan (\frac{x}{2})