81. T a. Show that –x

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.4: Cicumference And Area Of A Cicle
Problem 21E: Let N be any point on side BC of the right triangle ABC. Find the upper and lower limits for the...
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Evaluating limits.

please do not use "l'Hospital's Rule".

81. T
a. Show that –|x| < x sin
1
< |x], for a + 0.
b. Illustrate the inequalities in part (a) with a graph.
1
= 0.
c. Show that limx sin
Transcribed Image Text:81. T a. Show that –|x| < x sin 1 < |x], for a + 0. b. Illustrate the inequalities in part (a) with a graph. 1 = 0. c. Show that limx sin
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