$\begin{aligned} & \text{જો } 5(f(x))^2 = x f(x) + 30 \text{ અને } \\ & \int \frac{3 x^3 + (1 - 30 x^2) f(x)}{(10 f(x) - x)(x^3 - f(x))^2} dx \\ & = \frac{A}{B x^3 + D f(x)} + C, \text{ તો } A + B + D = \end{aligned}$

  • A
    $2$
  • B
    $1$
  • C
    $\frac{1}{2}$
  • D
    $-1$

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