Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

cos(4x)-cos(2x)=0 Find all solutions in the interval [0,2pi)

OpenStudy (anonymous):

Can only use double angle formulas and sum and difference formulas

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!