Sec 5.1: Areas and Distances Example: Example: Example: Formula:
Example: Example: Sigma Notation: Sec 5.1: Areas and Distances This tells us to end with i=100 This tells us to add. This tells us to start with i=1
Example Formula Sec 5.1: Areas and Distances This tells us to end with i=100 This tells us to add. This tells us to start with i=1 Example Formula
Sec 5.1: Areas and Distances
Sec 5.1: Areas and Distances TERM-111 Exam-1
Sec 5.1: Areas and Distances The Area Problem Divide it into triangles it isn’t so easy to find the area of a region with curved sides
Sec 5.1: Areas and Distances The Area Problem Find the area of the region that lies under the curve y=f(x) from a to b. Curve y=f(x), vertical lines x=a and x=b and the -axis.
Example: Sec 5.1: Areas and Distances Use rectangles to estimate the area under the parabola from 0 to 1
Example: Sec 5.1: Areas and Distances height is the right endpoints Use rectangles to estimate the area under the parabola from 0 to 1 height is the right endpoints
Example: Sec 5.1: Areas and Distances height is the left endpoints Use rectangles to estimate the area under the parabola from 0 to 1 height is the left endpoints
Example: Sec 5.1: Areas and Distances Use rectangles to estimate the area under the parabola from 0 to 1
Example: Sec 5.1: Areas and Distances Use rectangles to estimate the area under the parabola from 0 to 1 We can repeat this procedure with a larger number of strips 0.2734375 <S <0.3984375
Example: Sec 5.1: Areas and Distances Use rectangles to estimate the area under the parabola from 0 to 1 We could obtain better estimates by increasing the number of strips
Sec 5.1: Areas and Distances Example:
Sec 5.1: Areas and Distances Let’s apply the idea to the more general region S We start by subdividing the interval [a,b] into n subintervals The width of the interval [a,b] is b-a the width of each subinterval is The subintervals are
Sec 5.1: Areas and Distances
Sec 5.1: Areas and Distances Example:
Sec 5.1: Areas and Distances Example:
Sec 5.1: Areas and Distances
Note: Area under a curve = limit of summation Sec 5.1: Areas and Distances Note: Area under a curve = limit of summation Note:
Sec 5.1: Areas and Distances HW HW
Sec 5.1: Areas and Distances EXAM-1 TERM-102
Sec 5.1: Areas and Distances THE DISTANCE PROBLEM Find the distance traveled by an object during 10 seconds if the velocity of the object is 35 ft/s distance = velocity x time Here the velocity is constant But if the velocity varies, it’s not so easy to find the distance traveled.
Sec 5.1: Areas and Distances THE DISTANCE PROBLEM