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

  • A
    $\frac{48}{35 a^2}$
  • B
    $\frac{35}{48} a^4$
  • C
    $\frac{19}{72} a^6$
  • D
    $\frac{29}{56} a^4$

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मान लीजिए $f(x) = \left| \begin{array}{ccc} \sec x & \cos x & \sec^2 x + \cot x \csc x \\ \cos^2 x & \cos^2 x & \csc^2 x \\ 1 & \cos^2 x & \cos^2 x \end{array} \right|$,तो $\int_0^{\pi /2} f(x) dx = $

समाकलन $\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \sin^4 x \left( 1 + \log \left( \frac{2 + \sin x}{2 - \sin x} \right) \right) dx$ का मान है

$\int_{-\pi}^\pi \frac{\cos ^{2022} x}{1+(2022)^x} d x=$

दिया गया है कि $\frac{d}{d x} \int_0^{\phi(x)} f(t) d t=f(\phi(x)) \phi^{\prime}(x)$. सभी $x \in \left(0, \frac{\pi}{2}\right)$ के लिए,यदि $\int_1^{\cos x} t^2 f(t) d t=\cos 2 x$ है,तो $f\left(\frac{1}{\sqrt{2}}\right)=$

यदि $F(x) = \int_{x^2}^{x^3} \log t \, dt$ $(x > 0)$ है,तो $F'(x) = $

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