Question

Tell me pls it's urgent… If x²+1/x²=23. Then find the value of x+1/x.​

Answer 1

Answer:

We have x

2

+1/x

2

=23

(x−1/x)

2

=x

2

+1/x

2

−2

= 23 - 2

= 21

Taking square root on both sides, we get

(x−1/x)=√21

Thus, x−1/x=√21 or−√21

Answer 2

u see in the picture u will understand