MCQ
Function $f(x) = {\left( {\left\{ x \right\} - \frac{1}{2}} \right)^2}$ is (where $\{.\}$ represents fractional part function)
- Adiscontinuous
- Balways differentiable
- Cnon-periodic
- ✓even

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Which of the following is the principal value branch of cos-1x?
$\Big[\frac{-\pi}{2},\frac{\pi}{2}\Big]$
$(0,\pi)$
$[0,\pi]$
$(0,\pi)-\Big\{\frac{\pi}{2}\Big\}$