Table of Contents
Advertisement
To solve a trigonometric equation with functions on both the left and right sides
of the equality, you will press Y=
expression. To find the solutions of 2tan x sin x + 2 sin x = tan x + 1 you will
enter the left side of the equality for Y1 and the right side for Y2. To enter the
left side as Y1, press 2
ENTER . To enter the right side as Y2, press tan
Set your viewing window to the combined principal values by pressing
(–)
WINDOW
2ndF
÷
4
ENTER
(–)
to view the graph.
There appears to be four solutions to the equation. To "calculate" the
intersections (solutions), press TRACE , move the tracer right until it appears
on the screen, and press 2ndF
calculate the next intersection by pressing 2ndF
2 Intsct again. Shown below are two of the solutions (in radians) found by the
CALC feature.
Solving Trigonometric Equations/TRIGONOMETRY USING THE SHARP EL-9600
CL
to access and clear Y1 of an old
tan
X/ /T/n
sin
÷
2
ENTER
2
ENTER
2
ENTER
CALC and double touch 2 Intsct. You can
X/ /T/n
+
2
sin
X/ /T/n
+
2ndF
ENTER
1
ENTER . Press GRAPH
CALC and double touch
X/ /T/n
1
ENTER .
2ndF
27
Hide quick links:
Advertisement
Table of Contents
