English

State, Whether the Following Numbers is Rational Or Not : ( 3 - √3 )2 - Mathematics

Advertisements
Advertisements

Question

State, whether the following numbers is rational or not : ( 3 - √3 )2

Sum

Solution

( 3 - √3 ) = 32 - 2 ( 3 ) ( √3 ) + ( √3 )2
                   = 9 - 6√3 + 3 
                   = 12 - 6√3  = 6 ( 2 - √3 )
Irrational number.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Rational and Irrational Numbers - Exercise 1 (B) [Page 13]

APPEARS IN

Selina Concise Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
Exercise 1 (B) | Q 1.2 | Page 13
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×