o PROBLEM 9: Consider a circle of radius 1 centered at the origin and an angle of 8 radians, 0 <8<, in the given diagram.

Algebra and Trigonometry (MindTap Course List)
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Chapter5: Trigonometric Functions: Right Triangle Approach
Section5.CR: Chapter Review
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o PROBLEM 9: Consider a circle of radius 1 centered at the origin and an angle of 8 radians, 0 <0<, in the given diagram.
a.) By considering the areas of right triangle OAD, sector OAC, and right triangle OBC, conclude that
b.) Use part a.) and the Squeeze Principle to show that
J
e
O
(cos 8) (sin 8) < 8<
sin
lim
6-0+ 0
MacBook Pro
sin 8
cos 8
= 1.
B
Transcribed Image Text:o PROBLEM 9: Consider a circle of radius 1 centered at the origin and an angle of 8 radians, 0 <0<, in the given diagram. a.) By considering the areas of right triangle OAD, sector OAC, and right triangle OBC, conclude that b.) Use part a.) and the Squeeze Principle to show that J e O (cos 8) (sin 8) < 8< sin lim 6-0+ 0 MacBook Pro sin 8 cos 8 = 1. B
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