cos(x)= 3/10

Lösung

cos (x) = \frac{3}{10}

x = 1.26610 \dots + 2 πn, x = 2 π - 1.26610 \dots + 2 πn

Grad

x = 72.54239 \dots^{\circ} + 36 0^{\circ} n, x = 287.45760 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (x) = \frac{3}{10}

Wende die Eigenschaften der Trigonometrie an

cos (x) = \frac{3}{10}

Allgemeine Lösung für

cos (x) = \frac{3}{10}

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

x = arccos (\frac{3}{10}) + 2 πn, x = 2 π - arccos (\frac{3}{10}) + 2 πn

x = arccos (\frac{3}{10}) + 2 πn, x = 2 π - arccos (\frac{3}{10}) + 2 πn

Zeige Lösungen in Dezimalform

x = 1.26610 \dots + 2 πn, x = 2 π - 1.26610 \dots + 2 πn

5 cos (3 x + 60) = 4

3 sin^{2} (x) = 0

sin (x) n = 3

3 cos (2 x) = 4 - 11 cos (x)

8 tan (2 x) - 5 = 3