જો $A = \begin{bmatrix} a & 0 & 0 \\ 0 & a & 0 \\ 0 & 0 & a \end{bmatrix}$ હોય,તો $|A| |adj A|$ ની કિંમત શોધો.

  • A
    $a^{25}$
  • B
    $a^{27}$
  • C
    $a^{81}$
  • D
    $a^9$

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Similar Questions

જો $A = \begin{bmatrix} 1 & 2 & -2 \\ 2 & -1 & 2 \\ -1 & 1 & -2 \end{bmatrix}$ હોય,તો $A + 2A^{-1} =$

જો $A=\left[\begin{array}{ccc}2 & -1 & 1 \\ -1 & 2 & -1 \\ 1 & -1 & 2\end{array}\right]$ હોય,તો ચકાસો કે $A^{3}-6 A^{2}+9 A-4 I=0$ અને તે પરથી $A^{-1}$ શોધો.

Difficult
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ધારો કે $A$ એ $2 \times 2$ શ્રેણિક છે.
$\text{વિધાન}-1: adj(adj A) = A$
$\text{વિધાન}-2: |adj A| = |A|$

જો $A=\left[\begin{array}{ll}2 & 3 \\ 1 & 2\end{array}\right]$ અને $B=\left[\begin{array}{cc}2 & -3 \\ -1 & 2\end{array}\right]$ હોય,તો $\left(B^{-1} A^{-1}\right)^{-1}=$

$\begin{bmatrix} 1 & 2 & 3 \\ 0 & 1 & 2 \\ 0 & 0 & 1 \end{bmatrix}$ નો વ્યસ્ત શ્રેણિક શોધો.

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