જો $f(x) = \left| \begin{array}{ccc} -\sin x & 2 \sin 2x & 4 \cos^2 x \\ \cos x & 4 \sin^2 x & 2 \sin 2x \\ 0 & -\cos x & \sin x \end{array} \right|$ હોય,તો $f\left(\frac{5\pi}{4}\right) + f'\left(\frac{5\pi}{4}\right) = $

  • A
    $0$
  • B
    $-1$
  • C
    $-2$
  • D
    $-4$

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$f(x) = \left| \begin{array}{ccc} x^3 & x^2 & 3x^2 \\ 1 & -6 & 4 \\ p & p^2 & p^3 \end{array} \right|$,જ્યાં $p$ એક અચળાંક છે,તો $\frac{d^3f(x)}{dx^3}$ શું છે?

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ધારો કે $f(x) = \left| \begin{array}{ccc} 2\cos^2 x & \sin(2x) & -\sin x \\ \sin(2x) & 2\sin^2 x & \cos x \\ \sin x & -\cos x & 0 \end{array} \right|$. તો,$\int_{0}^{\frac{\pi}{2}} [f(x) + f'(x)] dx$ ની કિંમત શોધો.

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

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

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