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

how to find exact value of cos 15 using angle sum identities?

OpenStudy (anonymous):

Use your half angle formula. |dw:1334432992489:dw|

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!