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

The angle x is the reference angle. We know that cos (3x – 1) = cos (-(3x-1)) = cos (1-3x) I don't get how this works.

OpenStudy (anonymous):

cos (3x – 1) = cos (1-3x) 3x – 1 = 1-3x

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!