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College Algebra & Trigonometry, 2018a

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540 CHAPTER 11. THE LAW OF SINES THE LAW OF COSINES<br />

1<br />

1<br />

1<br />

3) a) b) c)<br />

6 2 6<br />

1<br />

1<br />

1<br />

4) a) b) c)<br />

3 2 3<br />

4<br />

5) a) = 1<br />

12<br />

b) = 3<br />

40<br />

c) = 10<br />

52 13 52 13 52 13<br />

6) a)<br />

13<br />

52 = 1 4<br />

b)<br />

26<br />

52 = 1 2<br />

c)<br />

39<br />

52 = 3 4<br />

7) a)<br />

5<br />

8<br />

b)<br />

7<br />

8<br />

c)<br />

0<br />

8 =0<br />

5<br />

3<br />

8) a) b) 1 c)<br />

8 4<br />

9) a)<br />

1<br />

3<br />

b)<br />

5<br />

17<br />

10)<br />

13C 5<br />

52C 5<br />

11)<br />

4 ∗ 13 C 5<br />

52C 5<br />

12)<br />

12<br />

52 ∗ 11<br />

51 ∗ 10<br />

50 ∗ 9<br />

49 ∗ 8<br />

48 = 12 C 5<br />

52C 5<br />

13)<br />

4<br />

52C 5<br />

14) a)<br />

6<br />

36 = 1 6<br />

b)<br />

4<br />

36 = 1 9<br />

c)<br />

6<br />

36 = 1 6<br />

d) 1 − 6<br />

36 = 5 6<br />

e)<br />

10<br />

36 = 5<br />

18<br />

15)<br />

1<br />

32<br />

16)<br />

5<br />

32<br />

17)<br />

31<br />

32<br />

18)<br />

26<br />

32 = 13<br />

16

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