cos(x)=-15/13

Lösung

cos (x) = - \frac{15}{13}

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

Schritte zur Lösung

cos (x) = - \frac{15}{13}

- 1 \leq cos (x) \leq 1

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

arctan (\frac{20}{x}) - arctan (\frac{400}{x}) = - 9.72

cos (θ) = \frac{9}{15}

tan (t) = - \frac{5}{12}

1 - 3 cos (x) - cos (2 x) = 0

cot (θ) = \frac{12}{5}, tan (θ)