Hello,
Turn calculator. Use arrow to highlight the 2:Graph and Geometry application. Enter your function at the bottom of the screen. Use TAB to move focus on command line.
Press [ENTER] to graph.
While graph is drawn, press [menu] key. Select [5:Trace][1:Graph Trace] . An X appears on the graph screen. Use arrow to move cursor towards one of the zeros you see. At some point the calculator will pop up the label [zero]
Press [ENTER]
Use arrows to move the cursor near a second zero. When [zero] pop up text appears, press [ENTER]
The value of the secon zero is also displayed.
You can also the nSolve command
Use the nSolve( function available in main calculator application. Here some exemples of syntax
On the second command line, the small vertical segment after the right parenthesis is accessed by the key sequence [CTRL] [infinity, beta, degree] key, the one under [left arrow/clear].
Hope it helps.
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