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CUET Mathematics 2024 PYQs

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CUET Mathematics 2024

Algebra

>

Matrices & Determinants

Easy

The matrix $\left[\begin{array}{lll}1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1\end{array}\right]$ is a : $\newline$ (A) scalar matrix $\newline$ (B) diagonal matrix $\newline$ (C) skew-symmetric matix $\newline$ (D) symmetric matrix
Choose the correct answer from the options given below :

(A), (B) and (D) only

(A), (B) and (C) only

(A), (B), (C) and (D)

(B), (C) and (D) only

Correct Option: 1

Will be added.

Related questions:

CUET Mathematics 2024

A

is a square matrix and

I

is an identity matrix such that

A^{2}=A

A(I-2 A)^{3}+2 A^{3}

CUET Mathematics 2024

For a square matrix

A_{n \times n}

|\operatorname{adj} \mathrm{A}|=|\mathrm{A}|^{\mathrm{n}-1}

|\mathrm{A}|=|\operatorname{adj} \mathrm{A}|^{\mathrm{n}-1}

\mathrm{A}(\operatorname{adj} \mathrm{A})=|\mathrm{A}|

\left|\mathrm{A}^{-1}\right|=\frac{1}{|\mathrm{~A}|}

CUET Mathematics 2024

A

B

are symmetric matrices of the same order, then

A B-B A