Algebra Question 1b

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1. Which of the following are irrational numbers?

1. Which of the following are irrational numbers?

 b) j) -1

Answer:

 b) yes j) no

1. Which of the following are irrational numbers?

j) -1

Solution: b) Yes, 3 is not a perfect square.

j) No, 

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.)