यदि $\int(2x+4)\sqrt{x-1} \, dx = a(x-1)^{\frac{5}{2}} + b(x-1)^{\frac{3}{2}} + c$ है,(जहाँ $c$ समाकलन स्थिरांक है),तो $a+b$ का मान क्या है?

  • A
    $\frac{46}{5}$
  • B
    $\frac{16}{15}$
  • C
    $\frac{24}{5}$
  • D
    $\frac{13}{15}$

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