Question

If a = 2 units, b = 4 units then verify the standard three identities.​

Answer 1

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

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

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

hence by putting value of a and b we can verify 3identities