Question

plz say the answer step is also needed​

Answer 1

Answer:

Using the identity (a-b)²=a²+ b²- 2ab

8.9²=(9 - 0.1)

=9² + 0.1² - 2×9× 0.1

81 + 0.01 -1.8

79.21

Yeh ha aapka answer

Answer 2

Hiiiiiiiiiiiiii

Hii rishikar howr u iam fine

Y were u absent these days