1.
The value of lim⁡n→∞(cos⁡x2cos⁡x4cos⁡x8…cos⁡x2n+1)\displaystyle\lim_{n\to\infty}\left(\cos\frac{x}{2}\cos\frac{x}{4}\cos\frac{x}{8}\ldots\cos\frac{x}{2^{n+1}}\right) is equal to
Limit, Continuity and Differentiability - Medium - Question