Test Index

UPSC NDA II 2025 Mathematics Paper

Show Para Hide Para

Question Numbers: 39-40

For the following two (02) items:

Let

A = \begin{bmatrix} \cos\theta & \sin\theta \\ -\sin\theta & \cos\theta \end{bmatrix}

© examsnet.com

Question : 40 of 120

Marks: +1, -0

What is

[adjA]^{−1}.

equal to?

-A
$−A^{T}$
A
$A^{T}$

Go to Question:

Prev Question

Next Question