$\sum_{n=1}^{\infty} \frac{2n^2+n+1}{n!}$ का मान ज्ञात कीजिए।

  • A
    $2e-1$
  • B
    $2e+1$
  • C
    $6e-1$
  • D
    $6e+1$

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Similar Questions

$\frac{2}{2!} + \frac{2+4}{3!} + \frac{2+4+6}{4!} + \dots$ का मान ज्ञात कीजिए।

$3 + \frac{5}{1!} + \frac{7}{2!} + \frac{9}{3!} + \dots \infty = $

$\frac{1^2 \cdot 2}{1!} + \frac{2^2 \cdot 3}{2!} + \frac{3^2 \cdot 4}{3!} + \dots \infty = $ ($e$ में)

$1 + \frac{1 + 3}{2!} + \frac{1 + 3 + 5}{3!} + \frac{1 + 3 + 5 + 7}{4!} + \dots \infty = $

यदि ${T_n} = \frac{{{3^n}}}{{2(n!)}} - \frac{1}{{2(n!)}}$ है,तो ${S_\infty } = $

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