Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

if cos alpha=-2/3 and the point corresponding to alpha is in the third quadrant, then sin(2alpha)= 4radical5/9

OpenStudy (anonymous):

if cos alpha=-2/3 and the point corresponding to alpha is in the third quadrant, then sin(2alpha)= 4\[4\sqrt{?}5\div9\]

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!