Question

16. Which of the following is irrational?
a) √9
b)√64
c) √5
d)√81

Answer 1

Answer:

An irrational number is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio. If N is irrational, then N is not equal to p/q where p and q are integers and q is not equal to 0. Example: √2, √3, √5, √11, √21, π(Pi) are all irrational.

Step-by-step explanation:

$c) √5$

Answer 2

Answer:

b)√5

Step by step Explanation:

because √9= 3

√64= 8 and √81 = 9