MAD111 Review Chap 1 2 ENG

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    MAD111 - Review Chapter 1 + 2

    1. How many tuples of (p, q, r) are there thatmake the compound proposition

    ( )p q r true?

    A. 2 B. 4 C. 6 D. None

    2. Compute

    (11011 01101) (01010 11011) .

    A. 10101 B. 01010 C. 11111 D. None

    3. The compound propositions( ) ( )p r q r and ( )p q r are

    logically equavalent ?

    A. Yes B. No

    4. Given the propositional function P(x) on

    the domain { -1, 0, 1}. Express the statement

    (( 0) ( ))x x P x without using quantifiers.

    A. ( 1) (0) (1)P P P B. (0) (1)P P

    C. ( 1) ( (0) (1))P P P D. None

    5. Let L(x,y) be the statement x loves y.Translate the statement An loves anybody

    except one person into logical expression.

    A. )),(( xAnLx

    B.))),()((),(( yAnLxyyxAnLx

    C.))),()((),(( yAnLxyyxAnLx

    D.))),()((),(( yAnLxyyxAnLx

    6. Express the negation of

    ( ( , ) ( ( , ) ( , )))x y P x y y Q x y R x y

    so that no negation precedes a quantifier.

    A. ( ( , ) ( ( , ) ( , )))x y P x y y Q x y R x y

    B. ( ( , ) ( ( , ) ( , )))x y P x y y Q x y R x y

    C. ( ( , ) ( ( , ) ( , )))x y P x y y Q x y R x y

    D. None

    7. Given the hypotheses

    -If Quang does every exercise in thisbook then Quang gets an A in this class.

    - If Quang gets an A in this class then

    Quang gets an A on the final exam.- Quang gets an A in this class.

    What conclusion can be drawn ?

    A. Quang does every exercise in this book,Quang gets an A in this class and Quang

    gets an A in this class.

    B. Quang does every exercise in this bookand Quang gets an A on the final exam.

    C. Quang gets an A on the final exam and

    Quang gets an A in this class.

    D. Quang gets an A in this class and Quanggets an A on the final exam.

    E. None

    8. Which statements are false ?

    A. { } B. P({1})

    C. {1} D. None

    9. Find the cardinality of the set({ , { }, 1, {1, 2}}) {x,{a, b}, x}P

    A. 32 B. 12 C. 48 D. None

    10. Let U = {1, 2, , 10} be an universal

    set. Represent the subset A={2, 3, 5, 7} as abit string of length 10, where the i-th bit is 1

    if i belongs to A and is 0 if i does not belongto A.

    A. 1111000000 B. 0110110000C. 0101011000. D. None

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    11. Compute 2.5 3.5 2.5 3.5 .

    A. -2 B. -1 C. 0 D. None12. Which functions from the set of integers

    to itself are not one-to-one?

    A. f(n) = n3 B. ( ) / 2 / 2f n n n= +

    C. ( ) / 2 .f n n n= D. None

    13. Which functions from the set of integers

    to itself are onto?

    A. f(n) = n3 B. ( ) / 2 / 2f n n n= +

    C. ( ) / 2 .f n n n= D. None

    14. Let f(x) = x2

    4; g(x) = x + 2. Find thecomposition ( )f g xo .

    A. x2 + x - 2 B. x2 2

    C. x2 + 4x D. None15. Given the sequence:1, 2, 2, 2, 3, 3, 3, 3, 3,

    Find the 100th term of the sequence.

    A. 10 B. 20 C. 21 D. 50

    16. Find:

    10

    1

    2 ( 1)i i

    i =

    +

    A. 211-1 B. 211-2

    C.111 ( 2)

    11 ( 2)

    D. None

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    Key: 1C, 2A, 3B, 4B, 5B, 6B, 7D, 8C, 9A, 10D, 11A, 12C, 13B, 14C, 15A, 16B