Indietro
Problema 58
Convert each radian measure to degrees. Write answers to the nearest minute. See Example 2(c).
5
Problema 60
Convert each radian measure to degrees. Write answers to the nearest minute. See Example 2(c).
3.06
Problema 61
Convert each radian measure to degrees. Write answers to the nearest minute. See Example 2(c).
0.3417
Problema 62
Convert each radian measure to degrees. Write answers to the nearest minute. See Example 2(c).
9.84763
Problema 63
Convert each radian measure to degrees. Write answers to the nearest minute. See Example 2(c).
-5.01095
Problema 67
Find each exact function value. See Example 3.
sin π/3
Problema 69
Find each exact function value. See Example 3.
tan π/4
Problema 71
Find each exact function value. See Example 3.
sec π/6
Problema 73
Find each exact function value. See Example 3.
sin π/2
Problema 75
Find each exact function value. See Example 3.
tan 5π/3
Problema 77
Find each exact function value. See Example 3.
sin 5π/6
Problema 79
Find each exact function value. See Example 3.
cos 3π
Problema 81
Find each exact function value. See Example 3.
sin (-8π/ 3)
Problema 83
Find each exact function value. See Example 3.
sin (-7π/ 6)
Problema 85
Find each exact function value. See Example 3.
tan (-14π/ 3)
Problema 90
Give an expression that generates all angles coterminal with an angle of π/2 radians. Let n represent any integer.
Problema 92
Through how many radians does the minute hand on a clock rotate in (a) 12 hr and (b) 3 hr?
Problema 1
CONCEPT PREVIEW Find the exact length of each arc intercepted by the given central angle.
Problema 2
CONCEPT PREVIEW Find the exact length of each arc intercepted by the given central angle.
Problema 3
CONCEPT PREVIEW Find the radius of each circle.
Problema 4
CONCEPT PREVIEW Find the radius of each circle.
Problema 5
CONCEPT PREVIEW Find the measure of each central angle (in radians).
Problema 6
CONCEPT PREVIEW Find the measure of each central angle (in radians).
Problema 7
CONCEPT PREVIEW Find the area of each sector.
Problema 8
CONCEPT PREVIEW Find the area of each sector.
Problema 13
Find the length to three significant digits of each arc intercepted by a central angle in a circle of radius r. See Example 1. r = 12.3 cm , θ = 2π/3 radians
Problema 15
Find the length to three significant digits of each arc intercepted by a central angle in a circle of radius r. See Example 1. r = 1.38 ft , θ = 5π/6 radians
Problema 17
Find the length to three significant digits of each arc intercepted by a central angle in a circle of radius r. See Example 1.
r = 4.82 m , θ = 60°
Problema 19
Find the length to three significant digits of each arc intercepted by a central angle in a circle of radius r. See Example 1.
r = 15.1 in. , θ = 210°
Problema 21
Concept Check If the radius of a circle is doubled, how is the length of the arc intercepted by a fixed central angle changed?