\( \operatorname { Cot } ( - \frac { 7 \pi } { 4 } ) \)

Find all solutions of the equation \( 2 \sin x+\sqrt{3}=0 \). The answer is \( A+B k \pi \) and \( C+D k \pi \) where \( k \) is any integer, \( 0<A<C<2 \pi \), \( A=\square, D=\square \) \( C=\square \) \( > \) Next Question

Find an angle \( \theta \) coterminal to \( 1256^{\circ} \), where \( 0^{\circ} \leq \theta<360^{\circ} \)

166 Un angolo alla circonferenza ha ampiezza \( \alpha \) e \( \cos \alpha=\frac{8}{17} \). Trova seno e coseno del corrispondente angolo al centro. 808 \( \left[\sin \beta=\frac{240}{289} ; \cos \beta=-\frac{161}{289}\right] \)

Find an angle \( \theta \) coterminal to \( -468^{\circ} \), where \( 0^{\circ} \leq \theta<360^{\circ} \)

Fid an angle \( \theta \) coterminal to \( -561^{\circ} \), where \( 0^{\circ} \leq \theta<360^{\circ} \)