જો $\frac{x^2+x+1}{x^2+2x+1}=A+\frac{B}{x+1}+\frac{C}{(x+1)^2}$ હોય,તો $A-B$ ની કિંમત શું થાય?

  • A
    $4C$
  • B
    $4C+1$
  • C
    $3C$
  • D
    $2C$

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$\frac{x^2 + 13x + 15}{(2x + 3)(x + 3)^2} = $

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જો $\frac{3x + a}{x^2 - 3x + 2} = \frac{A}{x - 2} - \frac{10}{x - 1}$ હોય,તો:

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$\frac{x^2 + 1}{(2x - 1)(x^2 - 1)} = $

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