# Algebra Question 1f

1. Which of the following are irrational numbers?

1. Which of the following are irrational numbers?

f) no

n) yes

1. Which of the following are irrational numbers?

Solution:

f) No,

n) Yes, e   is an irrational number.

Definition:

• Natural numbers (N)  =
• Whole numbers(W) (0,1,2,3, . . . ) \$
• Integers (Z)  =
• Fraction(F) (Numbers of the form , where a and b are whole numbers and . Whole numbers are fractions with b 1.)
• Rational numbers(Q)  =  (Numbers of the form , where a and b are integers and . All integers are rational numbers with b 1.)
• Irrational numbers  =  (All non-terminating, non-repeating numbers, such as , , the square roots of numbers which are not perfect squares.)