यदि $\int {\frac{{\csc^2 x}}{{{{\left( {\csc x + \cot x} \right)}^{\frac{9}{2}}}}}\,dx} = {\left( {\csc x - \cot x} \right)^{\frac{7}{2}}}\left( {\frac{1}{\alpha } + \frac{{{{\left( {\csc x - \cot x} \right)}^2}}}{{11}}} \right) + C$ (जहाँ $C$ समाकलन का स्थिरांक है और $\alpha \in N$),तो $\alpha$ का मान ज्ञात कीजिए।

  • A
    $5$
  • B
    $\frac{7}{2}$
  • C
    $10$
  • D
    $7$

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