KING FAHD UNIVERSITY OF PETROLUEM AND MINERALS
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 A
B