Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

cos2x=cos2x-sin2x (1/5 √ (1/5 √ )-(2/ 5 √ )(2/5 √ )=1/5-4/5= -3/5 am i right

OpenStudy (anonymous):

cant understand.plz write correctly so i can understand it.

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
2 days ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
2 days 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!