Math, asked by Snighda, 1 year ago

If x=√5+2, then find (x-1/x)^2.

Answers

Answered by palak123438
2
this is right answer.
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Answered by Giraffe
0

=((sqrt5+2-1)/(sqrt5+2))^2

=((sqrt5+1)(sqrt5-2)/(5-4))^2

=(5-sqrt5-2)^2

=(3-sqrt5)^2
=14-6sqrt5
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