Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

Use the given information to find cos(x/2), sin(x/2), and tan(x/2) sin x = 4/5 , π/2 < x < π

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!