Practicing Success
Practicing Success
CUET Preparation Today
Find the rate of change of the area of a circle per second with respect to its radius r when r = 2.5 cm. |
\[4\pi \] \[5\pi \] \[2\pi \] \[10\pi \] |
\[5\pi \] |
dA/dr = \[2r\pi \] |
