1.

Find the value of (x -1/x)cube if x =1 + root 2

Answer»

1/X=1/1+√2
=1*1-√2/1+√2*1-√2
=1-√2/1²-√2²
=1-√2/1-2
=1-√2/-1
=-1+√2
(1+√2-(-1+√2))³
(1+√2+1-√2)³
(2)³
8



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