**2.2: Graphs of the Secant and Cosecant Functions**
https://math.libretexts.org/Courses/Reedley_College/Trigonometry/02%3A_Graphing_the_Trigonometric_Functions/2.02%3A_Graphs_of_the_Secant_and_Cosecant_Functions

May 28, 2021 · The cosecant graph has vertical asymptotes at each value of \(x\) where the sine graph crosses the \(x\)-axis; we show these in the graph below with dashed vertical lines. Note that, since sine is an odd function, the cosecant function is also an odd function. That is, \(\csc(−x)=−\csc x\). The graph of cosecant, which is shown in Figure \(\PageIndex{2}\), is …

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