4. Graphs of tan, cot, sec and csc - Interactive Mathematics - Learn math while you play with it!
We learn why graphs of tan, cot, sec and cosec have a periodic gap in them (also known as a discontinuity). We learn how to sketch the graphs. ... I included a value just less than `π/2=1.57` so that we could get an idea of what goes on there. When `cos x...