Chapter 3.5, Problem 1TB

a)

To determine

To Find: The derivative $\frac{d}{dt}\pi u^2$

b)

To determine

To Find: The derivative $\frac{d}{dt}\left(3r+2s\right)$

c)

To determine

To Find: The derivative $\frac{d}{dt}\left(cu+rs\right)$

d)

To determine

To Find: The derivative $\frac{d}{dt}\left(k+c{u}^3\right)$

e)

To determine

To Find: The derivative $\frac{d}{dt}\left(c{r}^{2}u\right)$

f)

To determine

To Find: The derivative $\frac{d}{dt}\left(\frac{c+s}{k+u}\right)$