Question

If, A is a square matrix of order $3 \times 3$ such that $A^2 = A$ and I is the unit matrix of order $3 \times 3$, then the value of $(I-A)^3+A^2+I$ is:

• A. 0
• B. I
• C. 2I
• D. 4I

Answer 1

Answer: (C)

2I

Answer 2

The correct option is (C): 2I