જો $y = 1 + \frac{x}{1!} + \frac{x^2}{2!} + \frac{x^3}{3!} + \dots \infty$ હોય,તો $x = $

  • A
    $\log_e y$
  • B
    $\log_e \frac{1}{y}$
  • C
    $e^y$
  • D
    $e^{-y}$

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Similar Questions

સરવાળો $\sum \limits_{n=1}^{\infty} \frac{2n^2+3n+4}{(2n)!}$ કોના બરાબર છે :

$\frac{e^{7x} + e^{3x}}{e^{5x}}$ ના વિસ્તરણમાં,અચળ પદ કયું છે?

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

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

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

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