Question

if x= root 2+ 1 then find x= 1/x

Answer 1

х = √2 +1

$\frac{1}{x} = \frac{1}{ \sqrt{2} + 1} = \frac{ \sqrt{2} - 1 }{( \sqrt{2} + 1 )( \sqrt{2} - 1)} \\ = \frac{ \sqrt{2} - 1}{2 - 1} = \sqrt{2} - 1$
ѕσ
х-1/х = (√2 +1 )-(√2 -1)
= √2 +1 -√2 +1 =2

hσpє thíѕ íѕ ur rєquírєd αnѕwєr

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Answer 2

Answer:

Step

-by-step explanation:

х - 1/х = (√2 +1 )-(√2 -1)

= √2 +1 -√2 +1 =2