CUET Mathematics - If A is a square matrix such that A^2 = A and I is the identity matrix of same order as A, then the value of (A-2I)^2 - (2A + I)^2 + 11A is: | PYQs + Solutions

CUET Mathematics 2025 27 May Shift 1

Algebra

Medium

core

-I

✅ Correct Option: 3

Related questions:

3 June Shift 2

Assume A, B and C are matrices of order $m \times n$ , $n \times 3$ and $3 \times q$ respectively. The restrictions on $m_{AB}$ and $q$ so that $AB + BC$ is defined are

15 May Shift 2

If $\begin{bmatrix} 1 & 0 \\ b & 5 \end{bmatrix} + 2\begin{bmatrix} a & 0 \\ 1 & -2 \end{bmatrix} = I$ , where $I$ is a unit matrix of order 2, then the value of $(a - b)$ is:

13 May Shift 1

The matrix $\begin{bmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ 0 & 0 & 0 \end{bmatrix}$ is a

(A) Null matrix

(B) Unit matrix

(D) Skew-symmetric matrix

Choose the correct answer from the options given below:

CUET Mathematics 2025 27 May Shift 1 PYQs

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