In the unit circle, one can see that \(\sin \left(\frac{\pi }{3} \right)=\frac{\sqrt{3} }{2} .\) What is the value of \(\cos \left(\frac{\pi }{3} \right)?\)

In the unit circle, one can see that \(\cos \left(\frac{\pi }{3} \right)=\frac{1}{2}\) . What is the value of \(\sin \left(\frac{\pi }{3} \right)?\)

In the unit circle, one can see that \(\tan \left(240{}^\circ \right)=\sqrt{3}\) . What is the value of \(\sin \left(240{}^\circ \right)?\)