અનંત શ્રેણી $1+\frac{1}{2!}+\frac{1 \cdot 3}{4!}+\frac{1 \cdot 3 \cdot 5}{6!}+\dots$ નો સરવાળો કેટલો થાય?

  • A
    $e$
  • B
    $e^2$
  • C
    $\sqrt{e}$
  • D
    $\frac{1}{e}$

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Similar Questions

$\sum_{k=1}^{\infty} \frac{1}{k !} \left(\sum_{n=1}^k 2^{n-1}\right)$ ની કિંમત શોધો.

$1 + \frac{{\log_e x}}{{1!}} + \frac{{(\log_e x)^2}}{{2!}} + \frac{{(\log_e x)^3}}{{3!}} + \dots \infty = $

ધારો કે $\sum_{n=0}^{\infty} \frac{n^3((2n)!) + (2n-1)(n!)}{(n!)((2n)!)} = ae + \frac{b}{e} + c$,જ્યાં $a, b, c \in \mathbb{Z}$ અને $e = \sum_{n=0}^{\infty} \frac{1}{n!}$. તો $a^2 - b + c$ ની કિંમત $................$ છે.

$\frac{1 + \frac{2^2}{2!} + \frac{2^4}{3!} + \frac{2^6}{4!} + \dots \infty}{1 + \frac{1}{2!} + \frac{2}{3!} + \frac{2^2}{4!} + \dots \infty} = $

$(2+3x)e^{-x}$ ના વિસ્તરણમાં $x^{10}$ નો સહગુણક શું છે?

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