00:01
So we're just writing the definite integral of this limit, right? remember, reset the limit, the definite integral, definite integral of this function is just the limit as an and approaches infinity of summation i from one to n f of c i right and then change in x that is a definition now we're going to use this limit here to construct the integral first of all you can see that you have this as your b and this as your a so this is the same as first of all we we're going to have our negative 1 and 5 here.
01:07
Now, if you look at this one, this f of ci here is this guy right here.
01:18
And you can see that definitely here is only just ci.
01:22
Okay, nothing special.
01:25
It's just ci here.
01:26
So it's just wherever you saw x, you put ci there.
01:32
So originally it was x that was there.
01:35
And then you found f of c .i.
01:39
So whatever you saw x, you put c .i.
01:42
So wherever i see c .i, i'm going to put x to get f of x...