cos(x)=-3

Lösung

cos (x) = - 3

Keine L \overset{o}{¨} sung f \overset{u}{¨} r x \in R

Schritte zur Lösung

cos (x) = - 3

- 1 \leq cos (x) \leq 1

Keine L \overset{o}{¨} sung f \overset{u}{¨} r x \in R

2 cos (3 θ) = 1

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

2 cos^{2} (x) = 2 - sin (x)

sin (θ) = - \frac{1}{2}

cos (2 x) - 3 sin (x) - 2 = 0