Question

if 9x-1/9x=3 find the value of 81x²+1/81x²​

Answer 1

Answer:

11

Step-by-step explanation:

Please find the steps below

Answer 2

Answer:

9

Step-by-step explanation:

We know that,

9x-1/9x =3 ________Eq. 1

A.T.Q

81x^2+1/81x^2

=(9x-1/9x)^2

By using Eq. 1 ,

(3)^2

=9