IF x = 3-2 V2 , find the value of i) x + 1/x ii) x2 +1/X2
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x=3+22 x1=3+221×3−223−22
=3−22
(x−21)2=x+x1−2
=3+22+3−22−2=4
So, x−x1=4=±12 Ans
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