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

  • A
    $5e$
  • B
    $e$
  • C
    $15e$
  • D
    $2e$

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Similar Questions

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

श्रेणी $\frac{2}{2 !} + \frac{2+4}{3 !} + \frac{2+4+6}{4 !} + \ldots$ का योग किसके बराबर है?

${\left[ {1 + \frac{1}{{2!}} + \frac{1}{{4!}} + \dots \infty } \right]^2} - {\left[ {1 + \frac{1}{{3!}} + \frac{1}{{5!}} + \dots \infty } \right]^2} = $

$1+\frac{1+2}{2 !}+\frac{1+2+2^2}{3 !}+\ldots$ का मान ज्ञात कीजिए।

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

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