Cosine Curve y=cos x Small 320×153 Medium 640×306 Large 1024×490 Download Tiff Original 2400×1149 | (134.1 KB) Description Cosine curve plotted from negative pi to 2 pi. Graph of y=cos x. Keywords coordinate axis, cos, cosine curve, pi, trig, trigonometry, x-axis, y-axis, y=cos x Galleries Trigonometry: Functions Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 448 Courtesy the private collection of Roy Winkelman