HP 9g - Page 55

E-55
[ Range ] [ (–) ] 8 [ ] 8
[ ] 2 [ ] [ (–) ] 15 [ ]
15 [ ] 5
[ ] [ Graph ] [ ALPHA ]
[ X ] [ 2nd ] [ x
3
] [ + ] 3
[ ALPHA ] [ X ] [ x
2
] [ – ] 6
[ ALPHA ] [ X ] [ – ] 8
[ ]
[ Graph ] [ (–) ] [ ALPHA ] [ X ]
[ + ] 2
[ ]
Example 39
 Superimpose the graph of Y = cos (X) over the graph of Y = sin ( x )
[ Graph ] [ sin ] [ ]
[ Graph ] [ cos ] [ ALPHA ] [ X ]
[ ]
Example 40
 Use Trace function to analyze the graph Y = cos ( x )