જો $\frac{x^2-7 x+2}{x^4+3 x^2+4}=\frac{A x+B}{x^2+a x+2}+\frac{C x+D}{x^2+b x+2}$ અને $a>b$ હોય,તો $B+D=$

  • A
    $a+b$
  • B
    $2 a+b$
  • C
    $a+2 b$
  • D
    $a-b$

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જો $\frac{27x^2+32x+16}{(3x+2)^2(1-x)} = \frac{A}{3x+2} + \frac{B}{(3x+2)^2} + \frac{C}{1-x}$ હોય,તો $AB+BC+CA =$

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$\text{જો } \frac{3x^2+1}{(x^2+1)(x^2+2)^2} = \frac{Ax+B}{x^2+1} + \frac{Cx+D}{x^2+2} + \frac{Ex+F}{(x^2+2)^2} \text{ હોય, તો } A+C+E = $

$\frac{x^2-1}{(x^2+1)(x^2+2)}$ ના પાવર શ્રેણી વિસ્તરણમાં $x^4$ નો સહગુણક શોધો.

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