Test One Flashcards
What does the symbol Q represent?
Set of all rational numbers.
What does the symbol Z represent?
Set of all integers.
What does the symbol R represent?
Set of all real numbers.
True or False:
Zero is an element of Z
T
True or False:
Zero is an element of R
T
True or False:
Zero is an element of R+
F
True or False:
Zero is an element of Q-
F
True or False:
π is an element of Z
F
True or False:
π is an element of Q
F
True or False:
π is an element of R
T
True or False:
10/7 is an element of Z
F
True or False:
10/7 is an element of Q
T
True or False:
10/7 is an element of R
T
True or False:
Every integer is a real number.
T
True or False:
Every real number is an integer.
F
True or False:
Every integer is a rational number.
T
True or False:
Every real number is a rational number.
F
True or False:
For every real number r, -r is a negative real number.
F
