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

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

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Similar Questions

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

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

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

$(1 + x + x^2)e^{-x}$ ના વિસ્તરણમાં $x^2$ નો સહગુણક શોધો.

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

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