cos(c)=0.87

Lösung

cos (c) = 0.87

c = 0.51559 \dots + 2 πn, c = 2 π - 0.51559 \dots + 2 πn

Grad

c = 29.54136 \dots^{\circ} + 36 0^{\circ} n, c = 330.45863 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (c) = 0.87

Wende die Eigenschaften der Trigonometrie an

cos (c) = 0.87

Allgemeine Lösung für

cos (c) = 0.87

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

c = arccos (0.87) + 2 πn, c = 2 π - arccos (0.87) + 2 πn

c = arccos (0.87) + 2 πn, c = 2 π - arccos (0.87) + 2 πn

Zeige Lösungen in Dezimalform

c = 0.51559 \dots + 2 πn, c = 2 π - 0.51559 \dots + 2 πn

8 sin^{2} (x) - 2 sin (x) - 1 = 0

sin (\frac{1}{4} x) = 0

4 cos^{2} (x) - 4 cos (x) = - 1

2 sec (x) tan (x) = 0

tan^{2} (θ) - 3 tan (θ) - 4 = 0