Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

cos4(x) = cos^4(x) - 6sin^2(x) cos^2(x) + sin^4(x) sec^2(x) = 2sec(x) / sec(x) + 1

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!