Question

if x=1-√2,find the value of x-1/x give verified answer . otherwise i will report your answer​

Answer 1

x = 1- root 2
1/x = 1/1- root 2 or
1/ (1-root 2 )* (1+ root2 )/ (1+ root2 )
1/x = -1-root 2
So x +1/x = 1-root 2 + ( -1-root2 )
= -2 root 2 ans