Assignment for Section $5\mathrm{.}2$

Name: $q,$

Worksheet $4$

Exercise To Try $10$ Let $A$ be the area of the region that lies under the graph of $f(x)=lnx$ between $x=1$ and $x=4.$

$($a$)$ Estimate the area $A$ by taking the sample points to be the right endpoints and using three subintervals $($not with technology$).$

$($b$)$ Estimate the area $A$ by taking the sample points to be the midpoints and using three subintervals $($not with technology$).$