જો $A = \begin{bmatrix} k & 2 \\ 2 & k \end{bmatrix}$ અને $|A^3| = 125$ હોય,તો $k$ ની કિંમત શોધો.

  • A
    $\pm 2$
  • B
    $\pm 3$
  • C
    $-5$
  • D
    $-4$

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Similar Questions

નિશ્ચાયકનું મૂલ્ય શોધો: $\left|\begin{array}{ccc}0 & 1 & 2 \\ -1 & 0 & -3 \\ -2 & 3 & 0\end{array}\right|$

જો $60 \hat{i}+3 \hat{j}$,$40 \hat{i}-8 \hat{j}$ અને $a \hat{i}-52 \hat{j}$ સ્થાન સદિશો ધરાવતા બિંદુઓ સમરેખ હોય,તો $a$ ની કિંમત શોધો.

$\left|\begin{array}{ccc}a & b & c \\ a-b & b-c & c-a \\ b+c & c+a & a+b\end{array}\right|=$ નું મૂલ્ય શું છે?

$\left| \begin{array}{ccc} 1 & 1 & 1 \\ a & b & c \\ a^3 & b^3 & c^3 \end{array} \right| = $

જો $\left|\begin{array}{ccc}2 & 2k & 1 \\ 1 & k-1 & 1 \\ 2 & 1 & k+1\end{array}\right|=Ak^2+Bk+C$ હોય, તો $A+B+C=$

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