Texas Instruments TI-73VSC Guidebook - Page 220
Graphing Trig Functions
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214 Chapter 11: Trigonometry Graphing Trig Functions In addition to using the calculator to solve trig functions numerically, as described so far in this chapter, you can solve trig functions graphically. For more information on generating function tables or graphing functions, see Chapter 8: Tables and Chapter 9: Function Graphing. ³ In Degree Angle mode, find four Y values where Y1=tan(X) is undefined. Check your answer by displaying the table for Y1. 1. Select Degree Angle mode, if necessary. .##b 2. Deselect all Yn functions. -}2 6b 3. Define Y1=tan(X) in the Y= editor. &:-u5 IE 4. Graph the function using the ZTrig command. ($b 5. Trace the graph and observe where the Y value is undefined. ) " and ! , as necessary When X=90, Y is undefined.
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