Question

please someone solve and explain these questions ​

Answer 1

Answer:

please follow me fast ok

Answer 2

Answer:

Bro acc. to matrix property

(A+B)^2=A^2+B^2+AB+BA

and

(A+B)(A-B)=A^2-AB+BA-B^2

Bcoz here A and B are not numbers they are matrices.

But in some cases both are true.

i.e when AB=BA

but evrytime it's not equal.

If u want proof u can consider any 2×2 matrix and solve by putting in the equation and u will get it.

Hope this helps you