જો $\frac{1}{x^4+x^2+1}=\frac{Ax+B}{x^2+x+1}+\frac{Cx+D}{x^2-x+1}$ હોય,તો $\cos^{-1}(A+B+C+D)=$

  • A
    $\frac{\pi}{2}$
  • B
    $0$
  • C
    $\frac{\pi}{6}$
  • D
    $\frac{\pi}{3}$

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Similar Questions

જો $\frac{x^2-3x+2}{(x-4)(x-3)^2}=\frac{A}{x-4}+\frac{B}{x-3}+\frac{C}{(x-3)^2}$ હોય,તો $A+B+C=$

$\frac{-x^{2} + 6x + 13}{(3x + 5)(x^{2} + 4x + 4)} =$ નો આંશિક અપૂર્ણાંક નીચેનામાંથી કયો છે?

જો $\frac{x^3}{(2 x-1)(x+2)(x-3)} = A + \frac{B}{2 x-1} + \frac{C}{x+2} + \frac{D}{x-3}$ હોય,તો $A$ ની કિંમત શોધો.

જો $\frac{x^2}{(x^2+2)(x^4-1)} = \frac{A}{x^2-1} + \frac{B}{x^2+1} + \frac{C}{x^2+2}$ હોય,તો $A+B-C=$

જો $\frac{5x^2+2}{x^3+x}=\frac{A_1}{x}+\frac{A_2x+A_3}{x^2+1}$ હોય,તો $(A_1, A_2, A_3) = $

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