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TI-83 Plus Activities 578
Finding the Area between Curves
Problem
Find the area of the region bounded by
f(x) = 300x/(x
2
+ 625)
g(x)= 3cos(
.
1x)
x=75
Procedure
1. Press
z
. Select the default mode settings.
2. Press
p
. Set the viewing window.
Xmin=0 Ymin=
L
5
Xmax=100 Ymax=10
Xscl=10 Yscl=1
Xres=1
3. Press
o
. Turn off all functions and stat plots. Enter the upper and
lower functions.
Y1=300X
à
(X
2
+625)
Y
2=3cos(.1X)