$\sum_{r=1}^{20} \left( \sqrt{\pi \left( \int_0^r x |\sin \pi x| dx \right)} \right)$ નું મૂલ્ય . . . . . . છે.

  • A
    $200$
  • B
    $210$
  • C
    $190$
  • D
    $220$

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$\int_{0}^{\pi} \frac{x \, dx}{a^{2} \cos ^{2} x+b^{2} \sin ^{2} x}$ ની કિંમત શોધો.

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સંકલન $\int_0^\infty \frac{\log_e(x)}{x^2+4} dx$ નું મૂલ્ય શું છે?

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