Sharp EL-9600 User Manual page 82

NAME _____________________________________________________ CLASS __________ DATE __________
8.1
LAW OF SINES
Use the Graphic Solver with the Law of Sines.
1. Set the calculator to degrees by pressing 2ndF
and double touching 1 Deg. Press 2ndF
2. To access the SOLVER, press 2ndF
by pressing a/b
sin ALPHA
3. Store it into memory by pressing 2ndF
pressing ENTER , and typing in LAWSINES. Press ENTER to store the formula.
4. Press 2ndF
choose the Graphic Solver. Press ENTER for the list of variables.
5. With the blinking cursor over the A, type in 95 and press ENTER .
Next, type 15 for x, the length of the side opposite the 95°, and press
ENTER . Enter 48 for B in the same manner. Solve for y by positioning the
blinking cursor over the y and press 2ndF
6. You must enter the range values for the unknown (from BEGIN to END)
within which you expect to find the solution. Let the BEGIN = 5 by pressing
5 ENTER . Enter a value for END that you do not expect y to exceed,
say 25, by pressing 2
plot will be drawn showing graphs of the left and right sides of the current
equation.
7. The calculator will now display a blinking box in the upper right-hand
corner of the viewing screen while it looks for the intersection of the two
graphs. The solution is displayed at the bottom of the screen.
78 Blackline Masters/TRIGONOMETRY USING THE SHARP EL-9600
sin ALPHA A
B ALPHA Y .
SOLVER , touch A METHOD, double touch 3 Graphic to
5 ENTER . Press 2ndF
SET UP , touching B DRG,
QUIT to exit the set up screen.
SOLVER CL Enter sin
ALPHA X
SOLVER , touching C SAVE,
EXE .
EXE and an autoscaled
A B
= sin
X Y
ALPHA = a/b