Sharp EL-9600 User Manual page 69

NAME _____________________________________________________ CLASS __________ DATE __________
3.5
GRAPHICAL VERIFICATION OF FORMULAS AND IDENTITIES
Activity 3
1. Access and clear the Y1 prompt.
2. Enter the tan
3. Enter the sec
4. Set your viewing window.
5. Check to see if they result in the same graph.
6. Sketch the graph in the box below.
Activity 4
1. cos 2 = 2cos
2
2. csc – cot
3. tan csc
Verify the identity tan
2
x + 1 for Y1.
2
x for Y2.
Verify the following formulas and identities using the
steps provided in Activities 1 through 3:
2
– 1
2
= 1
= sec
Blackline Masters/TRIGONOMETRY USING THE SHARP EL-9600
2 2
+ 1 = sec :
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