Sharp EL-9600 User Manual page 68

NAME _____________________________________________________ CLASS __________ DATE __________
3.4
GRAPHICAL VERIFICATION OF FORMULAS AND IDENTITIES
Activity 2
1. Press Y=
2. Press (–) to insert a negative in front of the radical.
x
3. Sin ( ) will be negative for 2 < x < 4 . Enter this range by pressing
2
WINDOW
4. Check to see if they result in the same graph by pressing GRAPH .
5. Sketch the graph in the box below.
64 Blackline Masters/TRIGONOMETRY USING THE SHARP EL-9600
Verify the formula from Activity 1 for intervals
where sine is negative:
to access the Y2 prompt.
2 2ndF ENTER 4 2ndF ENTER .