00:01
Hi, i'm david and i'm here to have you understand your question.
00:03
In the question here, i want to approximate the integral from 0 to the 3 on the function fx, the x, and we're given the graph on the function, so let me bring it up here, let me make you figure.
00:16
So the integral here just equal to the area under the curve and above the x -axis, so that will be this area here.
00:27
And to find this area here, i will try to use the midpoint.
00:30
Now from the midpoint here i will try to draw the rectangle.
00:35
That will be the first rectangle.
00:37
It will be a1.
00:39
The second midpoint here in the second set we'll have this one will be the a2.
00:46
And this one will be the third midpoint and then we have this will be the a3.
00:53
And then the area here first, this one will be a plusmation.
00:57
And the area equal to the a1 plus the a2 plus the a3.
01:02
They all have the same place, we will equal to the 1...