Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

How to calculate: cos990° cos-630° sec945°

OpenStudy (anonymous):

cos 990 = 0 cos -630 = 0 sec 945 = - 1.414

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!