Advertisements
Advertisements
Question
Classify the following numbers as rational or irrational:
`sqrt(21)`
Classify
Numerical
Advertisements
Solution
` sqrt(21) = sqrt(3) xx sqrt(7)` is an irrational number because `sqrt(3)` and `sqrt(7)` are irrational and prime numbers.
shaalaa.com
Is there an error in this question or solution?
Chapter 1: Real Numbers - EXERCISE 1D [Page 36]
