21

course Mth 151

Dr. Smith,I feel somewhat triumphant that I have actually copied and pasted an assignment. I was not sure how to make the element and is not an element sign with the keyboard.

I am really trying to make this work!

Text Section 2.1

3. e

5. b

6.g

9. {1,2,3,4,5,6}

10. {9,10,11,12,13,14,15,16,17}

12. {5,6,7,8,9,10,11,12,13}

13. {6,7,8,9,10,11,12,13}

15. {-15,-13,-11,-9,-7,-5,-3,-1}

18. {90,87,84,81,78,75,72,69}

20. (-7,-5,-3,-1,1,3,5)

21. {21,22,23….}

24. {Lyndon Johnson……George W. Bush)

25. {5,10,15,20,25,30……..}

27.

30. {xIx is all even natural numbers)

33. finite

35. infinite

36. infinite

39. infinite

40. finite

42. 7

45.26

48.

50. 18

55. not well defined

57. not well defined

60. E

63. E

65. is not an element

66. is not an element

69. false

70. false

72.true

75. true

78. false

80. false

81. true

84. true

85. false

87. true

90.

91. (**) { $}

93. {5,6,10} {1,2,3}

95. a) 1,2,3,4

b) 4,5,6,7,8,9,10

96. a) c,s,r

b) r,s

I'm glad to get your work, and happy to say that you appear to be doing fine.

Most of your answers are correct; though a couple aren't.

However I don't 'mark' your answers 'right' or 'wrong'. My function is to critique your thinking, so I need to know what you are thinking about these problems.

I'm going to email you a copy of the 'open' query for this assignment, and a copy of the instructions for using it. The document asks you detailed questions about half a dozen or so of these problems.

You've already worked the problems, most of them correctly, so it won't take you long to insert your responses (less time that it took you to type them into this document). Do that, and follow the same procedure you did here for submitting a copy.

In the future, you should work the assignments, then go to the 'open' query and insert your responses. You don't need to submit work in this format, so using the 'open' queries shouldn't take you any more time than this did.