$f(x) = \left| \begin{array}{ccc} \sin^2 x & -2 + \cos^2 x & \cos 2x \\ 2 + \sin^2 x & \cos^2 x & \cos 2x \\ \sin^2 x & \cos^2 x & 1 + \cos 2x \end{array} \right|, x \in [0, \pi]$. तो $f(x)$ का अधिकतम मान $.....$ है।

  • A
    $6$
  • B
    $7$
  • C
    $8$
  • D
    $9$

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यदि $f(x) = \left| \begin{array}{ccc} 2 \cos x & 1 & 0 \\ x - \frac{\pi}{2} & 2 \cos x & 1 \\ 0 & 1 & 2 \cos x \end{array} \right|$ है, तो $f^{\prime}(\pi)$ का मान ज्ञात कीजिए।

मान लीजिए $\Delta = \begin{vmatrix} \sin \theta \cos \phi & \sin \theta \sin \phi & \cos \theta \\ \cos \theta \cos \phi & \cos \theta \sin \phi & -\sin \theta \\ -\sin \theta \sin \phi & \sin \theta \cos \phi & 0 \end{vmatrix}$. तो:

यदि $A = \begin{bmatrix} a & 0 & 0 \\ 0 & b & 0 \\ 0 & 0 & c \end{bmatrix}$ जहाँ $a = 7^x$,$b = 7^{7^x}$,$c = 7^{7^{7^x}}$ है,तो $\int |A| \, dx$ (जहाँ $|A|$ आव्यूह $A$ का सारणिक है) का मान ज्ञात कीजिए।

यदि $f(x) = \left| \begin{array}{ccc} x^3+x & x+1 & x-2 \\ 2x^3+3x-1 & 3x & 3x-3 \\ x^3+2x+3 & 2x-1 & 2x-1 \end{array} \right|$ है, तो $\frac{d}{dx}(f(x))$ का मान ज्ञात कीजिए।

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

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