If $A = \begin{bmatrix} 2 & -3 \\ 5 & 4 \end{bmatrix}$,then $A^{-1} = $ . . . . . . .

  • A
    $\begin{bmatrix} \frac{4}{23} & -\frac{3}{23} \\ -\frac{5}{23} & \frac{2}{23} \end{bmatrix}$
  • B
    $\begin{bmatrix} \frac{4}{23} & \frac{3}{23} \\ -\frac{5}{23} & \frac{2}{23} \end{bmatrix}$
  • C
    $\begin{bmatrix} -\frac{4}{23} & -\frac{3}{23} \\ -\frac{5}{23} & -\frac{2}{23} \end{bmatrix}$
  • D
    $\begin{bmatrix} \frac{4}{23} & \frac{3}{23} \\ \frac{5}{23} & \frac{2}{23} \end{bmatrix}$

Explore More

Similar Questions

If matrix $A = \begin{bmatrix} 1 & 2 \\ 3 & 5 \end{bmatrix}$ and $A^{-1} = \alpha I + \beta A$ where $I$ is a unit matrix of order $2$ and $\alpha, \beta$ are constants,then the value of $\alpha + \beta + \alpha \beta$ is

Let $A$ be a $3 \times 3$ matrix such that $A+A^{T}=O$. If $A\begin{bmatrix}1\\ -1\\ 0\end{bmatrix}=\begin{bmatrix}3\\ 3\\ 2\end{bmatrix}$,$A^{2}\begin{bmatrix}1\\ -1\\ 0\end{bmatrix}=\begin{bmatrix}-3\\ 19\\ -24\end{bmatrix}$ and $\det(\text{adj}(2\text{adj}(A+I))) = (2)^\alpha \cdot(3)^\beta \cdot(11)^\gamma$,then $\alpha+\beta+\gamma$ is equal to . . . . . . .

If the multiplicative group consists of $2 \times 2$ matrices of the form $\begin{bmatrix} a & a \\ a & a \end{bmatrix}$,where $a \neq 0$ and $a \in \mathbb{R}$,then the inverse of $\begin{bmatrix} 2 & 2 \\ 2 & 2 \end{bmatrix}$ is:

If $A = \begin{bmatrix} 3 & -3 & 4 \\ 2 & -3 & 4 \\ 0 & -1 & 1 \end{bmatrix}$,then $(A^2)^{-1} = $

Find the adjoint of the matrix: $\begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix}$

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo