please solve this question
Attachments:

Answers
Answered by
1
Answer:
7
Step-by-step explanation:
x-1/x=1
squaring both the side
we get,
x square - 2 + 1 upon x square is equals to 1
x square + 1/ x square =3
against squaring both the side
x 4 power plus 2 plus one upon x 4 power is equals to 9
X4 power plus one upon x 4 power is equals to 7
Similar questions