Question

x^2 + 1/x^2 = find the value of (x-1/x)^2 =

Answer 1

Answer:

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Answer 2

Answer:

Given,

x

2

−

x

2

1

=−1

Squaring on both sides

(x

4

+

x

4

1

−2=1

x

4

+

x

4

1

+2=3+2

(x

2

+

x

2

1

)

2

=5

⟹x

2

+

x

2

1

=

5