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

identity or not? ((1 + cos x)^(-1))-((1 - cos x)^(-1))-2((sec x - cos x)^(-1))

OpenStudy (anonymous):

you might mean = 2(...... it's not an identity.

OpenStudy (anonymous):

x=1/3 pi destroys the equation

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!