Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

Find the obtuse angle which has the negative cosine of 40 degrees. Please, can I get a full explanation?

OpenStudy (aravindg):

ofcourse but we can do it together ok ?

OpenStudy (aravindg):

tell me what did you try in this question?

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!