Sharp EL-9600 User Manual page 71

NAME _____________________________________________________ CLASS __________ DATE __________
4.2
PERIOD AND PHASE SHIFT
Investigate the change in a trigonometric function by multiplying
the argument
1. Press Y=
2. Make sure the calculator is in radian mode by pressing 2ndF
touch B DRG, and double touch 2 Rad. Press 2ndF
3. Now, enter sin x for Y1 by pressing sin
for Y2 by pressing CL
4. Set your viewing window by pressing ZOOM , touching E TRIG, and double
touching 1 sin x. Note the change in the second graph versus the first
graph. Engage the trace to show the period has changed from 2 to .
Investigate the change in a trigonometric function by subtracting
3
to the argument .
2
1. Press 2ndF
Double touch the screen at X = 3 /2 to the right of the box with the arrows.
Notice the new function Y = sin (X - 3 /2) is displayed. Press ENTER to
place the new function in the list.
2. Double touch the screen at Y = - 2, below the box with the arrows. Notice
the new function Y = sin (X – 3 /2) - 2 is displayed. Press ENTER to place
the new function in the list. Touch the top of the right side of the screen
and the list of three functions will be displayed. The function Y = sin X is
highlighted on the right side of the screen, and the graph is darkened on the
left side of the screen. Press
Observe and note the changes in sin X when you change the phase shift.
by 2.
CL to access and clear Y1 of an old expression.
(
sin
SHIFT/CHANGE , touch A SHIFT, and double touch 6 Y = sin X.
Blackline Masters/TRIGONOMETRY USING THE SHARP EL-9600
X/ /T/n ENTER and the sin (2x)
)
2 X/ /T/n ENTER .
to move from one graph to the next.
SET UP ,
QUIT to exit the menu.
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