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OpenStudy (taylerannjones):
What are the sine, cosine, and tangent of Θ = 7 pi over 4 radians?
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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):
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