Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Write the expression as an equivalent expression involving only x. (Assume x is positive) cos(2cos^-1x)

OpenStudy (anonymous):

Use double angle formula (cos 2 theta = 1- 2 sin^2 theta) Where theta = arcsin x

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!