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प्रश्न
State, whether the following numbers is rational or not : ( 2 + √2 )2
उत्तर
( 2 + √2 )2 = 22 + 2 ( 2 ) ( √2 ) + ( √2 )2
= 4 + 4√2 + 2
= 6 + 4√2
Irrational number.
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