यदि $\int_0^{2a} x^2 \sqrt{2ax-x^2} dx = ka^4$ है,तो $k : \pi =$ क्या होगा ($:8$ में)?

  • A
    $1$
  • B
    $3$
  • C
    $5$
  • D
    $9$

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$\mathop {Limit}\limits_{x \to {x_1}} \,\,\frac{x}{{x - {x_1}}}\,\,\int\limits_{{x_1}}^x {f(t)} \, dt$ का मान ज्ञात कीजिए:

$\int_0^{\frac{\pi}{2}} \sin^6 x \cos^4 x \, dx =$

$\int_0^{\pi /2} \sin^2 x \cos^3 x \, dx = $

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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 $f\left(\frac{1}{\sqrt{2}}\right)=$

वह $x$ का मान जो समाकल $\int\limits_x^{x + 3} {t(5 - t)\,dt}$ के मान को अधिकतम करता है,है

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