KING FAHD UNIVERSITY OF PETROLUEM AND MINERALS

College of Science, Prep- Year Math Program

Math 001 - Term 031

QUIZ #1(P1) a

Name :                                                 ID#:                                                     Section:  06

PART I: MULTIPLE CHOICE QUESTION                                  ( 3 points )

Question1:

Which one of the following statements is TRUE :

a) Every positive integer is either prime or composite

b) The product of two composite numbers is composite

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

multiplication

d) 1 is the only integer  that is neither prime nor composite

Question2:

Which one of the following statements is FALSE :

a) The sum of  two composite numbers is a composite number .

b)  is a not real number.

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

d) .

Question3:

If A= , then A has :

a)      7 rational numbers.

b)      3 irrational numbers.

c)      1 composite number.

d)      3 prime numbers.

PART II: WRITTEN PART

Question1:                                                                                                                 ( 4 points )

Complete each of the following sentences :

a)      The property of real numbers illustrated in the statement  2(a + b ) = 2( b + a )

is  called __________________________________.

b)      The irrational numbers in the set  A=

are: ___________________________________ .

c)      The reciprocal of  is :____________________.

d)      The property of equality illustrated in the statement:   1.z = 1.z

is  called __________________________________.

Question2:                                                                                                                 ( 3 points )

Let A=

B= .

1-     List all elements of A

2-     List all elements of B

3-     Find AB