Question

11.1^2-9.9^2 do using suitable identities

Answer 1

using identity÷

(11.1-1.1)^2 - (9.9+1.1)^2
=10^2 - 10^2
=100-100
=0

Answer 2

Answer:

$(11.1-1.1)^2 - (9.9+1.1)^2=10^2 - 10^2=100-100=0$

hope the answer helps you