જો $f(a + b - x) = f(x)$ હોય,તો $\int_{a}^{b} x \cdot f(a + b - x) \, dx = $

  • A
    $0$
  • B
    $\frac{1}{2}$
  • C
    $\frac{a + b}{2} \int_{a}^{b} f(x) \, dx$
  • D
    $\frac{a - b}{2} \int_{a}^{b} f(x) \, dx$

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