Question

In matrix prove that (a+b)^2 is not equal to a^2+b^2+2ab

Answer 1

Answer:

it is equal

Step-by-step explanation:

(A+B)^2 = (A+B)( A+B) ----------------distributive law

A(A+B)+B(A+B)-------------------------distributive law

=A^2+AB+AB+B^2--------------------distributive law

=A^2+1AB+1AB+B^2---‐---------------commutative property

=A^2+2AB+B^2

hence proved