Question

X2+1/X2 =11 then X-1/x=?

Answer 1

x2+1/x2=11---------1

x-1/x=?------2

now by en=1,we have

x2+1/x2=11

11x2=x2+1

11x2-x2=1

10x2=1

x=√1/√10

now put the value x in en=n2

u will get the ans

i tried my best

but i dont know its right or wrong

[yess to all]

Answer 2

hey mate here is your answer

(x- 1/X)²=x² + 1/x²-2

=11-2......... given

=9

by taking square root

x- 1/X =3

hope it will help you

mark me brainliest