Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

find zeros of y=1+2cos(2x) interval; -2pi/3<=x<=2pi/3

OpenStudy (anonymous):

cos 2x =-1/2 2x=(2n+1)\(\pi \pm \frac{\pi}{3}\)

OpenStudy (anonymous):

where does the (2n+1) come from?

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!
Latest Questions
Arriyanalol: i need help
1 day ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
1 day ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
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!