ધારો કે $A$ અને $B$ એ $3 \times 3$ ક્રમના બે વ્યસ્ત શ્રેણિકો છે. જો $\det(ABA^T) = 8$ અને $\det(AB^{-1}) = 8$ હોય,તો $\det(BA^{-1}B^T)$ ની કિંમત શોધો.

  • A
    $\frac{1}{4}$
  • B
    $1$
  • C
    $\frac{1}{16}$
  • D
    $16$

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ધારો કે $M = \begin{bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix}$ અને $N = \begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix}$. તો $N M^{10} N^{-1} =$

જો $A = \begin{bmatrix} p & q & r \\ r & p & q \\ q & r & p \end{bmatrix}$ અને $A A^T = I$ હોય,તો $p^3 + q^3 + r^3 =$ . . . . . .

જો ${\Delta _r} = \left| {\begin{array}{*{20}{c}} r&{2r - 1}&{3r - 2} \\ {\frac{n}{2}}&{n - 1}&a \\ {\frac{1}{2}n\left( {n - 1} \right)}&{{{\left( {n - 1} \right)}^2}}&{\frac{1}{2}\left( {n - 1} \right)\left( {3n - 4} \right)} \end{array}} \right|$ હોય,તો $\sum\limits_{r = 1}^{n - 1} {{\Delta _r}} $ નું મૂલ્ય:

સમીકરણ $\left| \begin{array}{ccc} (1+x)^2 & (1-x)^2 & -(2+x^2) \\ 2x+1 & 3x & 1-5x \\ x+1 & 2x & 2-3x \end{array} \right| + \left| \begin{array}{ccc} (1+x)^2 & 2x+1 & x+1 \\ (1-x)^2 & 3x & 2x \\ 1-2x & 3x-2 & 2x-3 \end{array} \right| = 0$

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