cos(c)= 15/17

Lösung

cos (c) = \frac{15}{17}

c = 0.48995 \dots + 2 πn, c = 2 π - 0.48995 \dots + 2 πn

Grad

c = 28.07248 \dots^{\circ} + 36 0^{\circ} n, c = 331.92751 \dots^{\circ} + 36 0^{\circ} n

Schritte zur Lösung

cos (c) = \frac{15}{17}

Wende die Eigenschaften der Trigonometrie an

cos (c) = \frac{15}{17}

Allgemeine Lösung für

cos (c) = \frac{15}{17}

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

c = arccos (\frac{15}{17}) + 2 πn, c = 2 π - arccos (\frac{15}{17}) + 2 πn

c = arccos (\frac{15}{17}) + 2 πn, c = 2 π - arccos (\frac{15}{17}) + 2 πn

Zeige Lösungen in Dezimalform

c = 0.48995 \dots + 2 πn, c = 2 π - 0.48995 \dots + 2 πn

sin (θ) = 0.3907

2 cos (4 x) - 3 = 0

tan (x) = sec^{2} (x)

sin (x) = 0, 8

sin (x) tan (x) = - 2 - cot (x) sin (x)