How do you find the value of cos 8(pi) using the graph? Trigonometry Graphing Trigonometric Functions Translating Sine and Cosine Functions 1 Answer Somebody N. Apr 13, 2018 color(blue)(1) Explanation: 8pi is 4 complete revolutions around the unit circle. If we start at 0 and cycle 4 times around the unit circle, we are back to where we started. i.e. 0. cos(8pi)=cos(0)=color(blue)(1) Answer link Related questions How do you graph sine and cosine functions when it is translated? How do you graph y=sin ( x -frac{\pi}{2} )? How do you draw a sketch of y = 1 + cos (x - pi) How do you shift and graph y=-3+sinx? How do you graph y=3sin(1/3x+ pi/2)-2? How do you graph 1/2sin(x-pi)? How do you graph -sinx+2? How do you graph y=3sin(1/2)x? How do you graph y=-2cos((pix)/3)? How do you graph y = (1/2)sin(x - pi)? See all questions in Translating Sine and Cosine Functions Impact of this question 3041 views around the world You can reuse this answer Creative Commons License