We will start with the Cosecant and the Secant graphs. Why would these four graphs have discontinuity, or breaks?Īll of these functions are built from sine and cosine, and they all have denominators! And because they all have denominators, that means we need to make sure we never divide by zero! Well, it is any place where there is a gap or a break in our graph, meaning we are indicating any place where our function is undefined, as nicely stated by Interactive Mathematics. What is most interesting about all four of these graphs is that we encounter discontinuity! In this lesson we are going to learn how to graph the other four trigonometric functions: tan, cot, sec, and csc.
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