Question

Solve this problem with Perfect solution ​

Answer 1

Answer:

x2y2-1(1-1/X2×y2

Step-by-step explanation:

I thik it help y

Answer 2

Step-by-step explanation:

(x² - 1/y²) (y² - 1/x²)

= x²y² - x²/x² - y²/y² + 1/(x²y²)

= (xy)² - 1 - 1 + 1/(xy)²

= (xy)² - 2 + 1/(xy)²

= (xy)² - 2 (xy) (1/xy) + 1/(xy)²

= (xy - 1/xy)², which is a perfect square

We used the identity -

(a - b)² = a² - 2ab + b²

hope this ans. will help uhh dear

please Mark me as brainliest ans.