यदि $\frac{1}{(3x+1)(x-2)}=\frac{A}{3x+1}+\frac{B}{x-2}$ और $\frac{x+1}{(3x+1)(x-2)}=\frac{C}{3x+1}+\frac{D}{x-2}$ है,तो

  • A
    $A+3B=0, A:C=1:3, B:D=2:3$
  • B
    $A+3B=0, A:C=3:1, B:D=3:2$
  • C
    $A-3B=0, A:C=3:2, B:D=1:3$
  • D
    $A+3B=0, A:C=3:2, B:D=1:3$

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निम्नलिखित में से कौन सा एक अनुचित परिमेय भिन्न (improper rational fraction) है?

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यदि $\frac{\sin^2 x + 1}{2\sin^2 x - 5\sin x + 3} = \frac{A}{2\sin x - 3} + \frac{B}{\sin x - 1} + C$ है,तो:

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यदि $\frac{2 x+7}{\left(x^2+4\right)\left(x^2+9\right)\left(x^2+16\right)}=\frac{A x+1}{x^2+4}+\frac{B x+m}{x^2+9}+\frac{C x+n}{x^2+16}$ है,तो $\frac{1}{A}+\frac{1}{B}+\frac{1}{C}=$

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