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Question
State, whether the following numbers is rational or not : ( 3 - √3 )2
Solution
( 3 - √3 )2 = 32 - 2 ( 3 ) ( √3 ) + ( √3 )2
= 9 - 6√3 + 3
= 12 - 6√3 = 6 ( 2 - √3 )
Irrational number.
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