आव्यूह का व्युत्क्रम ज्ञात कीजिए (यदि इसका अस्तित्व है): $\left[\begin{array}{ccc}2 & 1 & 3 \\ 4 & -1 & 0 \\ -7 & 2 & 1\end{array}\right]$

  • A
    $\frac{1}{3}\left[\begin{array}{ccc}-1 & 5 & 3 \\ -4 & 23 & 12 \\ 1 & -11 & -6\end{array}\right]$
  • B
    $-\frac{1}{3}\left[\begin{array}{ccc}-1 & 5 & 3 \\ -4 & 23 & -12 \\ 1 & -11 & -6\end{array}\right]$
  • C
    $-\frac{1}{3}\left[\begin{array}{ccc}-1 & 5 & 3 \\ -4 & 23 & 12 \\ 1 & -11 & -6\end{array}\right]$
  • D
    $\frac{1}{3}\left[\begin{array}{ccc}-1 & 5 & -3 \\ -4 & 23 & 12 \\ 1 & -11 & -6\end{array}\right]$

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आव्यूह का व्युत्क्रम ज्ञात कीजिए (यदि इसका अस्तित्व है): $\left[\begin{array}{cc}2 & -2 \\ 4 & 3\end{array}\right]$

यदि $\begin{bmatrix} 1 & -\tan \theta \\ \tan \theta & 1 \end{bmatrix} \begin{bmatrix} 1 & \tan \theta \\ -\tan \theta & 1 \end{bmatrix}^{-1} = \begin{bmatrix} a & -b \\ b & a \end{bmatrix}$ है,तो

यदि $A(\alpha) = \begin{bmatrix} \cos \alpha & \sin \alpha \\ -\sin \alpha & \cos \alpha \end{bmatrix}$ है,तो $[A^2(\alpha)]^{-1} = $

यदि $\begin{bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 2 \\ 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 3 \\ 0 & 1 \end{bmatrix} \dots \begin{bmatrix} 1 & n-1 \\ 0 & 1 \end{bmatrix} = \begin{bmatrix} 1 & 78 \\ 0 & 1 \end{bmatrix}$ है,तो $\begin{bmatrix} 1 & n \\ 0 & 1 \end{bmatrix}$ का व्युत्क्रम (inverse) ज्ञात कीजिए।

मान लीजिए $X=\begin{bmatrix} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 0 & 0 & 0 \end{bmatrix}$,$Y=\alpha I+\beta X+\gamma X^{2}$ और $Z=\alpha^{2} I-\alpha \beta X+\left(\beta^{2}-\alpha \gamma\right) X^{2}$,जहाँ $\alpha, \beta, \gamma \in \mathbb{R}$ है। यदि $Y^{-1}=\begin{bmatrix} \frac{1}{5} & \frac{-2}{5} & \frac{1}{5} \\ 0 & \frac{1}{5} & \frac{-2}{5} \\ 0 & 0 & \frac{1}{5} \end{bmatrix}$ है,तो $(\alpha-\beta+\gamma)^{2}$ का मान ज्ञात कीजिए।

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