The side of a square is increasing at the rate of $0.2\,cm / s$. The rate of increase of perimeter w.r.t. time is $...........\,cm / s$

  • A

    $0.2$

  • B

    $0.4$

  • C

    $0.6$

  • D

    $0.8$

Similar Questions

A particle moves along the straight line $y=3 x+5$. Which coordinate changes at a faster rate?

${d \over {dx}}\log (\log x)$=

The greatest value of the function $-5 \sin \theta+12 \cos \theta$ is

Frequency $f$ of a simple pendulum depends on its length $\ell$ and acceleration $g$ due to gravity according to the following equation $f=\frac{1}{2 \pi} \sqrt{\frac{ g }{\ell}}$. Graph between which of the following quantities is a straight line?

${d \over {dx}}({x^2}{e^x}\sin x) = $