CUET Preparation Today
If A and B are square matrices of the same order, then (A+B) (A-B) is equal to |
$A^2-B^2$ $A^2-BA-AB-B^2$ $A^2-BA+B^2+AB$ $A^2-B^2+BA-AB$ |
$A^2-B^2+BA-AB$ |
The correct answer is Option (4) → $A^2-B^2+BA-AB$ $(A+B) (A-B)$ $=A^2-AB+BA-B^2$ |
