$\lim _{x \rightarrow 0} \frac{48}{x^4} \int _{0}^{x} \frac{t^3}{t^6+1} dt$ का मान $.......$ है।

  • A
    $6$
  • B
    $3$
  • C
    $9$
  • D
    $12$

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$\lim \limits_{x \rightarrow 1} \left( \frac{\int \limits_{0}^{(x-1)^{2}} t \cos(t^{2}) dt}{(x-1) \sin(x-1)} \right)$ का मान ज्ञात कीजिए।

दिया गया है कि $\frac{d}{d x}\left[\int_0^{\phi(x)} f(t) d t\right]=f(\phi(x)) \cdot \phi^{\prime}(x)$. यदि $\int_0^{x^3} f(t) d t = x^2 \sin(2 \pi x)$ है,तो $f(8)$ का मान ज्ञात कीजिए।

$\lim _{n \rightarrow \infty} \frac{1}{n}\left\{\sin ^5\left(\frac{\pi}{6 n}\right)+\sin ^5\left(\frac{2 \pi}{6 n}\right)+\sin ^5\left(\frac{3 \pi}{6 n}\right)+\ldots+\sin ^5\left(\frac{\pi}{2}\right)\right\} = $

यदि $I_n = \int_0^a \frac{x^n}{\sqrt{a^2-x^2}} dx$ है, तो $\frac{I_8}{I_4} =$

$\int_0^{\pi /2} \sin^{2m} x \, dx = $

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