i$)$Demonstrate effective calculus use by determining the rate of change for the following $3$ functions:B is the value stated on the front covery $=$ Bx$3$ Bx$-2+9$ Determine the rate of change of y with respect to xs $=$ ln$($Bsin$2$t$)$ Determine the rate of change of s with respect to ty $=$ Bx$2$ cosx Determine the rate of change of y with respect to x