Question

Evaluate using identities (0.99)²

Answer 1

(0.99)² 

(1 - 0.01)²

================
By Identity,
(a - b)² = a² + b² - 2ab
==================

(1 - 0.01)²

(1)² + (0.01)² -2( 1 × 0.01)

1 + 0.0001 - 0.02

0.9801


i hope this will help you


-by ABHAY

Answer 2

Heya ✋

Let see your answer !!!!

(0.99)

$= (1 - 0.01) ^{2}$

We apply this formula here

$(a - b) ^{2} = a ^{2} + b ^{2} - 2ab \\ (1) ^{2} + (0.01) ^{2} - 2 \times 1 \times 0.01 \\ = 1 + 0.0001 - 0.02 \\ = 1.0001 - 0.02 \\ = 0.9801$

Thanks :))))