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Answers to Chapter Test Forms CHAPTER 6, FORM B CHAPTER 6, FORM A 1. D: [–1, 1], R: [0, ʌ]
1. D: [–1, 1], R: [ 0, π ] 2.
2π 3
3. −
π 4
6.
π
3.
π
2 7 3
7.
2 42 − 2 15
8.
5π not in range of csc −1 4
6.
2 4
7.
5 3−2 12
8. −
12. 0°, 30°, 180°, 330° 13.
12. 199.47°, 340.53°
15.
π 5π 3
6
6
,
15.
2
3
3
16. 0.126, 1.444, 3.268, 4.586 17. x =
1 y arcsin 2 3
18. x = arcscos 19.
,
6
,
6
π 5π 3
,
π 2
3 , π,
3π 2
1 y 17. x = arccos 3 2
18. x = 5 + arctan
5 y −1 4
6 61 61
20. −
2
16. 0,
π 5π ,
π 7π 11π
14. 0.361, 2.780, 3.503, 5.922
π 5π 3π ,
not in range of sec −1
11. 150°, 210°
11. 0°, 90°, 180°, 270°
3
3
10. 120°, 240°
10. 0°, 60°, 180°, 300°
,
π
9. 35.26°, 144.74°, 215.26°, 324.74°
9. 135°, 225°
14.
2
5. 0
π
13. 0,
4
4. 1.79
4. 1.12 5.
2.
19.
12 5
20.
2 4
1 3
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Full file at https://testbankuniv.eu/Trigonometry-11th-Edition-Lial-Test-Bank
3y 8