$\frac{2}{1!} + \frac{4}{3!} + \frac{6}{5!} + \frac{8}{7!} + \dots \infty = $

  • A
    $1/e$
  • B
    $e$
  • C
    $2e$
  • D
    $3e$

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Similar Questions

$(e^x - 1)^2$ ના વિસ્તરણમાં $x^4$ નો સહગુણક શું હશે?

$\frac{1}{2} + \frac{1}{4} + \frac{1}{8 \times 2!} + \frac{1}{16 \times 3!} + \frac{1}{32 \times 4!} + \dots \infty = $

$\sum_{n=1}^{\infty} \frac{2n^2+n+1}{n!}$ ની કિંમત શોધો.

શ્રેણી $\frac{1}{2!} - \frac{1}{3!} + \frac{1}{4!} - \dots$ નો અનંત સુધીનો સરવાળો કેટલો થાય?

$\frac{2\frac{1}{2}}{1!} + \frac{3\frac{1}{2}}{2!} + \frac{4\frac{1}{2}}{3!} + \frac{5\frac{1}{2}}{4!} + \dots \infty$ ની કિંમત શું છે?

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