$\lim _{n \rightarrow \infty} \frac{(2n(2n-1) \dots (n+1))^{1/n}}{n} = $

  • A
    $\int_0^1 \ln x \, dx$
  • B
    $\int_0^1 x \ln x \, dx$
  • C
    $\int_0^1 (x+1) \ln (x+1) \, dx$
  • D
    $\int_0^1 \ln (1+x) \, dx$

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निम्नलिखित कथनों में से:
$(S1): \lim _{n \rightarrow \infty} \frac{1}{n^2}(2+4+6+\ldots+2n)=1$
$(S2): \lim _{n \rightarrow \infty} \frac{1}{n^{16}}(1^{15}+2^{15}+3^{15}+\ldots+n^{15})=\frac{1}{16}$

मान लीजिए $S = \frac{2}{1} {}^{n}C_{0} + \frac{2^{2}}{2} {}^{n}C_{1} + \frac{2^{3}}{3} {}^{n}C_{2} + \ldots + \frac{2^{n+1}}{n+1} {}^{n}C_{n}$ है। तो, $S$ का मान क्या है?

$a \in \mathbb{R}$ (सभी वास्तविक संख्याओं का समुच्चय) के लिए,$a \neq -1$,यदि $\lim_{n \to \infty} \frac{1^a + 2^a + \dots + n^a}{(n+1)^{a-1}[(na+1) + (na+2) + \dots + (na+n)]} = \frac{1}{60}$ है,तो $a$ का मान ज्ञात कीजिए:

$\mathop {\lim }\limits_{n \to \infty } \left( \frac{1^2}{1^3 + n^3} + \frac{2^2}{2^3 + n^3} + \dots + \frac{n^2}{n^3 + n^3} \right)$ का मान ज्ञात कीजिए।

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$\mathop {\lim }\limits_{n \to \infty } \sum\limits_{k = 1}^n {\frac{k}{{{n^2} + {k^2}}}} $ का मान ज्ञात कीजिए।

Difficult
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