Question

please solve this question​

Answer 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