Question

use suitable indentity to find (1.02)^2-(0.98)^2?​

Answer 1

Answer:

(1.02)²-(0.98)²

=(1.02+0.98)(1.02-0.98)

=2×0.04

=0.08

Answer 2

Answer:

a^2 - b^2 = (a+b) (a-b)

So, answer is (1.02+0.98) (1.02-0.98) = (2) (0.04) = 0.08