Question

if x ka square+1 upon x ka square equal to 27, find the value of each of the following. first question is x+ 1upon x abd second question is x-1 upon x​

Answer 1

x ka square +1/x ka square is equal to 27 . ans 26

Answer 2

Answer:

x^2+1/x^2=27

cross multiplication,

x square+1=x square×27

x^2+1=27x^2

1=27x^2-x^2

1=26x^2

√1=26x

1=26x

1/26=x

x=1/26

values,

x+1/x=1/26+1/1/26

=27/26/1/26

=26×26/27

676/27

second,x-1/x

=1/26-1/1/26

=-25/26/1/26

=26×26/-25

=676/-25