જો શ્રેણિક $\begin{bmatrix} x & x & x \\ x & x^2 & x \\ x & x & x+1 \end{bmatrix}$ નો નિશ્ચાયક (rank) $1$ હોય, તો:

  • A
    $x=0$ અથવા $x=1$
  • B
    $x=1$
  • C
    $x=0$
  • D
    $x \neq 0$

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જો $f(x) = \left| \begin{array}{ccc} \sin(x + \alpha) & \sin(x + \beta) & \sin(x + \gamma) \\ \cos(x + \alpha) & \cos(x + \beta) & \cos(x + \gamma) \\ \sin(\alpha + \beta) & \sin(\beta + \gamma) & \sin(\gamma + \alpha) \end{array} \right|$ અને $f(10) = 10$ હોય,તો $f(\pi)$ ની કિંમત શોધો.

જો $A(x) = \left| \begin{array}{ccc} 1 & 2 & 3 \\ x+1 & 2x+1 & 3x+1 \\ x^2+1 & 2x^2+1 & 3x^2+1 \end{array} \right|$ હોય, તો $\int_0^1 A(x) \, dx$ ની કિંમત શોધો.

શ્રેણિક $\begin{bmatrix} 3 & 5 & -1 & 4 \\ 2 & 1 & 3 & -2 \\ 8 & 11 & 1 & 6 \\ -7 & -14 & 6 & -14 \end{bmatrix}$ નો નિશ્ચાયક (Rank) શોધો.

$A = \begin{bmatrix} 1 & x & x+1 \\ 2x & x^2-x & x^2+x \\ 3x(x-1) & x(x^2-3x+2) & x(x^2-1) \end{bmatrix}$ નો રેન્ક (rank) શોધો.

જો $\left| \begin{array}{ccc} 1 + ax & 1 + bx & 1 + cx \\ 1 + a_1x & 1 + b_1x & 1 + c_1x \\ 1 + a_2x & 1 + b_2x & 1 + c_2x \end{array} \right| = A_0 + A_1x + A_2x^2 + A_3x^3$ હોય,તો $A_1$ ની કિંમત શોધો.

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