Consider the function $f: [1.2, 1.9] \rightarrow \mathbb{R}$ defined by $f(x) = [x]$,where $[x]$ denotes the greatest integer less than or equal to $x$. Which of the following is true?

  • A
    $f'(x) = 0$
  • B
    $f$ is not differentiable
  • C
    $f$ is discontinuous
  • D
    $f'(x) = 1$

Explore More

Similar Questions

If $y = f \left( \frac{3x + 4}{5x + 6} \right)$ and $f'(x) = \tan(x^2)$,then $\frac{dy}{dx} = $

If $y = x + \frac{1}{x}$,then

$A$ function $f$ satisfying $f'( \sin x ) = \cos^2 x$ for all $x$ and $f(1) = 1$ is :

If $3 f(x)-2 f\left(\frac{1}{x}\right)=x$,then $f^{\prime}(2)=$

If $a$ and $b$ are fixed non-zero constants,then the derivative of $\frac{a}{x^{4}}-\frac{b}{x^{2}}+\cos x$ is $ma+nb-p$,where

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