यदि $f(x) = \int_{9x^2}^{x^4} 5^{\sqrt{t}} dt$ है,तो $\lim_{h \to 0} \frac{f(3 + h) - f(3 - h)}{h}$ का मान ज्ञात कीजिए।

  • A
    $0$
  • B
    $108(5^9)$
  • C
    $5^5$
  • D
    $54(5^8)$

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