KING FAHD UNIVERSITY OF PETROLUEM AND MINERALS

Diploma Math Program

Math 003 - Term 041

QUIZ #1(P1) a

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PART I: MULTIPLE CHOICE QUESTION (4.5 points)

Question1:

Which one of the following statements FALSE?

a) is a negative number.

b) is a not real number.

c) The operation of division of real numbers is not commutative.

d) .

e) 1 is the only positive integer that is neither prime nor composite.

Question2:

If A=, then A has

a) 7 rational numbers.

b) 4 irrational numbers.

c) no composite number.

d) 2 prime numbers.

e) 1 perfect square.

Question3:

Which one of the following statements is TRUE?

a) Every positive integer is either prime or composite

b) The sum of two composite numbers is a composite

c) The set of irrational numbers is closed under addition but not closed under multiplication

d) 0, 1, 2, 3, 4, … are positive integers

e) The reciprocal of an irrational number is an irrational number

PART II: WRITTEN PART

Question1: (2points)

Complete each of the following sentences:

a) The reciprocal of is: ____________________.

b) The property of equality illustrated in the statement:

If and , then is called ____Transitive________________.

Question2: (3.5points)

Let A=

B=.

1- List all elements of A and B

2- Find AB