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

cos^2x+2cosx+1=0

OpenStudy (anonymous):

possible answers: a) 3pi/2 b) 0 c) pi/2 d)pi

OpenStudy (tkhunny):

Have you considered factoring? How would you solve this? \(z^{2} + 2z + 1 = 0\)

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!