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

Given that cos 5pi/8 = -siny, first express 5pi/8 as a sum of pi/2 and an angle, and then apply a trigonometric identity to determine the measure of angle y

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!