Ask your own question, for FREE!
Mathematics 6 Online
OpenStudy (anonymous):

2cos2x=-1

OpenStudy (anonymous):

\[2x=(2n+1)\pi \pm \pi/6\] \[x =(2n+1)\pi/2 \pm \pi/12\]

OpenStudy (anonymous):

where n is any integer

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!