Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

What is the y-value for f(x) = cos(x) when x = -90°?

OpenStudy (anonymous):

0

OpenStudy (lgbasallote):

simply substitute x = -90 \[f(x) = \cos (-90)\] what does this equal to then?

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!