Cos X Graphs
Cos X Graphs. This time the angle is measured from the positive vertical axis. Can you see this in the graphs above?
So, cos(x) is the same for both x the signs of x. The graph has a period of 360°. As it is more usually written, is shown below:
The diagram shows a graph of y = cos x for 0° ≤ x ≤ 360°, determine the values of p, q and r.
To see how the sine and cosine functions are graphed, use a calculator, a computer, or a set of trigonometry tables to determine the values of the sine and cosi. Do you see how this third graph is squished in from the sides, as compared with the first graph? In this section we will do a very quick review of many of the most common functions and their graphs that typically show up in a calculus class. Sal draws the graphs of the sine and the cosine functions and analyzes their intersection points.
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