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

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

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Similar Questions

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

ધારો કે $S$ એ અનંત શ્રેણી $1+\frac{8}{2!}+\frac{21}{3!}+\frac{40}{4!}+\frac{65}{5!}+\ldots$ નો સરવાળો દર્શાવે છે. તો

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

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

શ્રેણી $\frac{4}{1!} + \frac{11}{2!} + \frac{22}{3!} + \frac{37}{4!} + \frac{56}{5!} + \dots$ નો સરવાળો શોધો.

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