यदि $|x| < 1$ है,तो $\frac{3x}{(x-2)(x+1)}$ के विस्तार में $x^5$ का गुणांक क्या है?

  • A
    $\frac{33}{32}$
  • B
    $\frac{-33}{32}$
  • C
    $\frac{31}{32}$
  • D
    $\frac{-31}{32}$

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$\frac{2x}{x^4 + x^2 + 1}$ का आंशिक भिन्न अपघटन ज्ञात कीजिए।

यदि $\frac{9x-7}{(x+3)(x^2+1)} = \frac{A}{x+3} + \frac{Bx+C}{x^2+1}$, जहाँ $A, B, C \in \mathbb{R}$, तो $A+B+C = $

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