धनात्मक पूर्णांक $n$ के लिए,$f(n) = n + \sum_{r=1}^n \frac{16r + (9-4r)n - 3n^2}{4rn + 3n^2}$ परिभाषित करें। तो,$\lim_{n \rightarrow \infty} f(n)$ का मान किसके बराबर है?

  • A
    $3 + \frac{4}{3} \log_e 7$
  • B
    $4 - \frac{3}{4} \log_e \left(\frac{7}{3}\right)$
  • C
    $4 - \frac{4}{3} \log_e \left(\frac{7}{3}\right)$
  • D
    $3 + \frac{3}{4} \log_e 7$

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यदि $a$ और $b$ धनात्मक पूर्णांक हैं जैसे कि $b > a$,तो $\lim_{n \to \infty} \left[ \frac{1}{na} + \frac{1}{na + 1} + \frac{1}{na + 2} + \dots + \frac{1}{nb} \right] = $

$\lim _{n \rightarrow \infty}\left[\frac{1}{n}+\frac{1}{n+1}+\frac{1}{n+2}+\ldots+\frac{1}{3 n}\right]=$

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

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