$|x| < 1$ માટે,$\frac{x^4}{(x+1)(x-2)}$ ના પાવર શ્રેણી વિસ્તરણમાં $x^2$ નો સહગુણક શું છે?

  • A
    $3$
  • B
    $0$
  • C
    $-1$
  • D
    $-3$

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જો $\frac{3x^2+x+1}{(x-1)^4} = \frac{a}{(x-1)} + \frac{b}{(x-1)^2} + \frac{c}{(x-1)^3} + \frac{d}{(x-1)^4}$ હોય,તો $\left[\begin{array}{ll}a & b \\ c & d\end{array}\right]$ ની કિંમત શોધો.

જો $\frac{x^3}{(2x - 1)(x + 2)(x - 3)} = p + \frac{q}{2x - 1} + \frac{r}{x + 2} + \frac{s}{x - 3}$ હોય,તો:

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જો $\frac{x^2-x+1}{(x^2+1)(x^2+x+1)}=\frac{Ax+B}{x^2+1}+\frac{Cx+D}{x^2+x+1}$ હોય, તો $A+2B+C+2D=$

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 $AB+BC+CA =$

જો $\frac{1}{(x-1)(x-2)(x-3)}=\frac{A}{x-1}+\frac{B}{x-2}+\frac{C}{x-3}$ અને $\frac{x}{(x-1)(x-2)(x-3)}=\frac{P}{x-1}+\frac{Q}{x-2}+\frac{R}{x-3}$ હોય, તો $A+2B+3C=$

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