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Beliebt Trigonometrie >

cos(x)= 9/15

Lösung

cos (x) = \frac{9}{15}

Lösung

x = 0.92729 \dots + 2 πn, x = 2 π - 0.92729 \dots + 2 πn

+1

Grad

x = 53.13010 \dots^{\circ} + 36 0^{\circ} n, x = 306.86989 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{9}{15}

Streiche die gemeinsamen Faktoren:

3

cos (x) = \frac{3}{5}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{3}{5}

Allgemeine Lösung für

cos (x) = \frac{3}{5}

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

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

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

Zeige Lösungen in Dezimalform

x = 0.92729 \dots + 2 πn, x = 2 π - 0.92729 \dots + 2 πn

Graph

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