શ્રેણિક $A = \begin{bmatrix} 2 & 3 & 1 & 4 \\ 0 & 1 & 2 & -1 \\ 0 & -2 & -4 & 2 \end{bmatrix}$ નો નિશ્ચાયક (rank) શોધો.

  • A
    $2$
  • B
    $3$
  • C
    $1$
  • D
    અનિશ્ચિત

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જો $A = \begin{bmatrix} \sqrt{2020} & \sqrt{2021} & \sqrt{2022} & \sqrt{2023} \\ \sqrt{4040} & \sqrt{4042} & \sqrt{4044} & \sqrt{4046} \\ \sqrt{6060} & \sqrt{6063} & \sqrt{6066} & \sqrt{6069} \\ \sqrt{8080} & \sqrt{8084} & \sqrt{8088} & \sqrt{8092} \end{bmatrix}$ હોય,તો $A$ નો શ્રેણિકનો ક્રમ (rank) શોધો.

જો $A = \begin{vmatrix} x & 1 & 1 \\ 1 & x & 1 \\ 1 & 1 & x \end{vmatrix}$ અને $B = \begin{vmatrix} x & 1 \\ 1 & x \end{vmatrix}$ હોય,તો $\frac{dA}{dx}$ ની કિંમત શોધો.

શ્રેણિક $\begin{bmatrix} 1 & 4 & -1 \\ 2 & 3 & 0 \\ 0 & 1 & 2 \end{bmatrix}$ નો નિશ્ચાયક (rank) શોધો.

જો $f(x) = \left|\begin{array}{ccc} x^3 & 2x^2+1 & 1+3x \\ 3x^2+2 & 2x & x^3+6 \\ x^3-x & 4 & x^2-2 \end{array}\right|$ તમામ $x \in R$ માટે હોય,તો $2f(0) + f'(0)$ ની કિંમત શોધો.

ધારો કે $f(x) = \left| \begin{array}{ccc} \cos x & x & 1 \\ 2 \sin x & x^3 & 2x \\ \tan x & x & 1 \end{array} \right|$. તો $\lim_{x \rightarrow 0} \frac{f(x)}{x^2}$ ની કિંમત શોધો.

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