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

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

Explore More

Similar Questions

$\sum\limits_{n = 1}^\infty {\frac{{^n{C_0} + ... + ^n{C_n}}}{{^n{P_n}}}} $ ની કિંમત શોધો.

Difficult
View Solution

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

$\frac{a + bx + cx^2}{e^x}$ ના વિસ્તરણમાં,$x^n$ નો સહગુણક શું છે?

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

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

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo