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

  • A
    $24$
  • B
    $0$
  • C
    $-6$
  • D
    $12$

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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) = $

જો $D(x) = \begin{vmatrix} x - 1 & (x - 1)^2 & x^3 \\ x - 1 & x^2 & (x + 1)^3 \\ x & (x + 1)^2 & (x + 1)^3 \end{vmatrix}$ હોય,તો $D(x)$ માં $x$ નો સહગુણક શું છે?

$f(x) = \left| \begin{array}{ccc} \sin^2 x & -2 + \cos^2 x & \cos 2x \\ 2 + \sin^2 x & \cos^2 x & \cos 2x \\ \sin^2 x & \cos^2 x & 1 + \cos 2x \end{array} \right|, x \in [0, \pi]$. તો $f(x)$ ની મહત્તમ કિંમત $.....$ છે.

જો $\begin{vmatrix} x^2+x & x+1 & x-2 \\ 2x^2+3x-1 & 3x & 3x-3 \\ x^2+2x+3 & 2x-1 & 2x-1 \end{vmatrix} = xA+B$,જ્યાં $A$ અને $B$ એ $3$ ક્રમના નિશ્ચાયકો છે જેમાં $x$ નો સમાવેશ થતો નથી,તો $|A|=$

નિશ્ચાયક $\left| \begin{array}{ccc} a^2 & a & 1 \\ \cos(nx) & \cos(n+1)x & \cos(n+2)x \\ \sin(nx) & \sin(n+1)x & \sin(n+2)x \end{array} \right|$ નું મૂલ્ય કોનાથી સ્વતંત્ર છે?

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