Question

X=1+√2, then the value of. (x-1/x) is 
A. 2√2
B. 0
C. 3
D. 2​

Answer 1

Answer:

x=1+√2

=1+√2-1/1-√2

=3+2√2/1+√2

=4+2√2/1+√2

=4+2/1+1

=6/2

=3

(x-1/x) is 3

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