$\frac{1^2 \cdot 2}{1!} + \frac{2^2 \cdot 3}{2!} + \frac{3^2 \cdot 4}{3!} + \dots \infty = $ ($e$ में)

  • A
    $6$
  • B
    $7$
  • C
    $8$
  • D
    $9$

Explore More

Similar Questions

श्रेणी $\frac{1}{2!} + \frac{1}{4!} + \frac{1}{6!} + \dots$ का योग क्या है?

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

$\frac{e^{7x} + e^x}{e^{3x}}$ के विस्तार में $x^n$ का गुणांक क्या है?

$\sum_{n=1}^{\infty} \frac{2n^2+n+1}{n!}$ का मान ज्ञात कीजिए।

$\frac{2\frac{1}{2}}{1!} + \frac{3\frac{1}{2}}{2!} + \frac{4\frac{1}{2}}{3!} + \frac{5\frac{1}{2}}{4!} + \dots \infty$ का मान क्या है?

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