CUET Mathematics - If A is a square matrix such that A^2=A and I is the identify matrix of the same order as A then (I + 2A)^3-6A is equal to | PYQs + Solutions

CUET Mathematics 2025 2 June Shift 1

Algebra

Medium

applied

$I + 26A$

20A

$I + 20A$

26A

✅ Correct Option: 3

Related questions:

30 May Shift 2

Given a matrix A of order 3x3. If |A|=3 then the value of |A(adj A)| is:

14 May Shift 1

If A and B are skew-symmetric matrices, then which one of the following is NOT true?

22 May Shift 1

Let $A = \begin{bmatrix} 152 & 105 & 3 \\ 140 & 25 & 5 \\ 2 & 1 & 0 \end{bmatrix}$ . If $A_{ij}$ denotes the co-factor of an element $a_{ij}$ of the matrix A, then the value of $a_{11}A_{11} + a_{12}A_{12} + a_{13}A_{13}$ is equal to

CUET Mathematics 2025 2 June Shift 1 PYQs

Keyboard Shortcuts