Draw a picture of the angle 0 in standard position labeling x- and y-axis, initial and terminal side, a curved arrow, with the quadrants labeled. Use the Pythagorean Identity to calculate the sine or cosine of the angle 0. Determine if sine and cosine are positive or negative in this quadrant. 2 cos and is between 270 and 360 7 tan 0 = To enter a square root, type: sqrt To enter, type: pi To enter a fraction, type / Select an answer Select an answer