Question

If x=1-√2 find x-1/x​

Answer 1

Answer:

x= 1- root 2

1/x= -1- root 2 (after rationalizing)

subtract the values of x and 1/x

you would get 2

Answer 2

Answer:

your answer is 2

Step-by-step explanation:

x = 1 - √2

hence x - 1/x = (1 - √2) - 1/(1 - √2)

(- 1 - √2) - 1/(1 - √2) x (1 + √2)/(1 + √2)

(1 - √2) - (1 + √2)/(1)whole square 2 - (√2)whole square 2

= (1 - √2) - 1 + √2/1 - 2

= (1 - √2) - (-1 + √2)

= 1 - √2 + 1 + √2

= 1 + 1 = 2