cos(x)=sqrt(2)

Lösung

cos (x) = 2

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

Schritte zur Lösung

cos (x) = 2

- 1 \leq cos (x) \leq 1

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

6 cos^{2} (x) - 7 sin (x) - 1 = 0

2 sin^{2} (θ) + 3 sin (θ) + 1 = 0

1 = sin (x)

sin (2 x) = - cos (x)

cos (2 θ) = cos (θ)