જો $f(x) = \left| \begin{array}{ccc} 2 \cos x & 1 & 0 \\ x - \frac{\pi}{2} & 2 \cos x & 1 \\ 0 & 1 & 2 \cos x \end{array} \right|$ હોય, તો $f^{\prime}(\pi)$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $2$
  • C
    $\frac{\pi}{2}$
  • D
    $\pi - 6$

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જો ${D_p} = \begin{vmatrix} p & 15 & 8 \\ p^2 & 35 & 9 \\ p^3 & 25 & 10 \end{vmatrix}$ હોય,તો ${D_1} + {D_2} + {D_3} + {D_4} + {D_5} = $

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

જો $A = [a_{ij}]$,$1 \leq i, j \leq n$ જ્યાં $n \geq 2$ અને $a_{ij} = i + j$ એક શ્રેણિક હોય,તો $A$ નો શ્રેણિકનો ક્રમ (rank) શું છે?

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