Ask your own question, for FREE!
Mathematics 6 Online
OpenStudy (taylerannjones):

What are the sine, cosine, and tangent of Θ = 7 pi over 4 radians?

OpenStudy (mathmale):

Especially if you're new to Trig, I'd suggest you draw this angle, draw the triangle formed by this angle and label all three sides of the triangle: opposite side, adjacent side and hypotenuse. 7pi/4 rad is equivalent to 315 degrees, if that helps.

OpenStudy (mathmale):

Review the 45-45-90 degree triangle.|dw:1463598038575:dw|

OpenStudy (mathmale):

Welcome to OpenStudy!

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!