$1+\sin x+\sin ^2 x+\sin ^3 x+\ldots+\infty=4+2 \sqrt{3}$ and $0 < x < \pi, x \neq \frac{\pi}{2}$,then $x=$

  • A
    $\frac{\pi}{6}, \frac{\pi}{4}$
  • B
    $\frac{\pi}{4}, \frac{5 \pi}{6}$
  • C
    $\frac{2 \pi}{5}, \frac{\pi}{6}$
  • D
    $\frac{\pi}{3}, \frac{2 \pi}{3}$

Explore More

Similar Questions

The sum of the series $1+3+5^2+7+9^2+\ldots$ up to $40$ terms is equal to

The sum of the $1^{st} n$ terms of the series $\frac{1^{2}}{1} + \frac{1^{2}+2^{2}}{1+2} + \frac{1^{2}+2^{2}+3^{2}}{1+2+3} + \ldots$ is:

The sum of an infinite geometric series is $3$. $A$ series,which is formed by squaring its terms,also has a sum of $3$. The first series is

The sum to $20$ terms of the series $2^2-3^2+4^2-5^2+6^2-\ldots$ is equal to $........$.

$\sum_{k=1}^{2n+1} (-1)^{k-1} \cdot k^2$ is equal to

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