$\int_{0}^{1} \left( \prod_{r=1}^{n} (x+r) \right) \left( \sum_{k=1}^{n} \frac{1}{x+k} \right) dx$ નું મૂલ્ય શું થાય?

  • A
    $n$
  • B
    $n!$
  • C
    $(n+1)!$
  • D
    $n \cdot n!$

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$\int_0^{\pi /4} \frac{dx}{\cos^4 x - \cos^2 x \sin^2 x + \sin^4 x} = $

Difficult
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જો $[x]$ એ $x$ થી મોટું ન હોય તેવું મહત્તમ પૂર્ણાંક વિધેય હોય,તો $\int_0^8 [x] dx$ ની કિંમત શોધો.

$\int_0^k(\sqrt{k}-\sqrt{t})^2 \, dt =$

નિશ્ચિત સંકલનનું મૂલ્ય શોધો: $\int_0^{\pi /2} \cos^2 x \, dx$

$[0, \pi]$ પર $y = \sin x$ નો સરેરાશ ઓર્ડિનેટ (average ordinate) કેટલો થાય?

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