Solve \( \sin ^{2}(w)=-2 \cos (w) \) for all solutions \( 0 \leq w<2 \pi \) \( w=0 \) Give your answers as values accurate to at least two decimal places in a list separated by commas.

\( \frac { 4 \sin \frac { \alpha } { 2 } \cos \frac { \alpha } { 2 } } { \tan \frac { \alpha } { 2 } } - 1 \)

Find an angle \( \theta \) coterminal to \( -555^{\circ} \), where \( 0^{\circ} \leq \theta<360^{\circ} \)

If \( \cos (\alpha+\beta)=0 \) then \( \sin (\alpha+2 \beta) \)

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

Which is the correct identity for cos? \( \cos \theta=\frac{h}{a} \) \( \cos =\frac{h}{a} \) \( \cos \theta=\frac{a}{h} \) \( \cos =\frac{a}{h} \)