Question

(iii) 1.97 x 2.03
Expand the following and find the value of ( with the help of algerabic identities) ​

Answer 1

Answer:

0.9991

Step-by-step explanation:

1.97×2.03

=(1+.03)×(1-.03)

=(1)^2-(.03)^2

=1-.0009

=0.9991

Answer 2

Answer:

❣ ANSWER ❣

✡ ROCKY HERE ✌

$identity \: used \: - \\ (x - a)(x + a) = {x}^{2} - {a}^{2}$

$1.97 \times 2.03 \\ = (2 - 0.03)(2 + 0.03) \\ = {2}^{2} - {0.03}^{2} \\ = 4 - 0.09 \\ = </p><p>3.91$

✴HAPPY TO ANSWER