यदि $f(x)=3 x^2+2 x f^{\prime}(1)+f^{\prime \prime}(2)$ है,तो $f(x)=$ . . . . . .

  • A
    $3 x^2+8 x+4$
  • B
    $3 x^2+12 x+12$
  • C
    $3 x^2-12 x+6$
  • D
    $3 x^2-18 x+5$

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यदि $f(x) = 4x^3 + 3x^2 + 3x + 4$,$x \neq 0$ है,तो $\frac{d}{dx}\left(x^3 \cdot f\left(\frac{1}{x}\right)\right) =$ . . . . . .

यदि $\frac{d}{d x}\left\{\frac{2}{\sqrt{2+\sqrt{2+\sqrt{2+2 \cos (4 x)}}}}\right\} = k \sec \left(\frac{x}{2}\right) \tan \left(\frac{x}{2}\right)$ है,तो $k$ का मान ज्ञात कीजिए।

$\sqrt{\sqrt{x} + 1}$ का अवकलज (derivative) क्या है?

यदि $y=\sqrt{\frac{1+\tan x}{1-\tan x}}$,तो $\frac{d y}{d x}=$

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