यदि $[\cdot]$ महत्तम पूर्णांक फलन को दर्शाता है, तो $\int_1^2 [x^2] dx =$

  • A
    $5-\sqrt{2}-\sqrt{3}$
  • B
    $5+\sqrt{2}-\sqrt{3}$
  • C
    $5-\sqrt{2}+\sqrt{3}$
  • D
    $5+\sqrt{2}+\sqrt{3}$

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$\int_{0}^{1} \left( \prod_{r=1}^{n} (x+r) \right) \left( \sum_{k=1}^{n} \frac{1}{x+k} \right) dx$ का मान क्या है?

$\int_0^a {\frac{{{x^4}\,dx}}{{{{({a^2} + {x^2})}^4}}}} = $

Difficult
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माना $n \in N$ के लिए $a_{n} = \int_{-1}^{n} \left(1 + \frac{x}{2} + \frac{x^{2}}{3} + \ldots + \frac{x^{n-1}}{n}\right) dx$ है। तो समुच्चय $\{n \in N : a_{n} \in (2, 30)\}$ के सभी अवयवों का योग $...........$ है।

$\sum\limits_{r = 2}^{16} {\int\limits_r^{r + 1} {\frac{{dx}}{{\left( {2r - x} \right)\left( {2r + 2 - x} \right)}}} }$ का मान ज्ञात कीजिए।

यदि $\int_0^{\frac{\pi}{2}} \frac{\cot x}{\cot x + \csc x} dx = m(\pi + n)$ है,तो $m \cdot n$ का मान ज्ञात कीजिए।

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