00:01
Okay, so here's this function, f of x is k times x to the three halves defined on the interval four to nine.
00:14
And so this function is, as long as k is bigger than zero, k is positive or non -negative.
00:23
K will be non -negative, so that's no problem.
00:26
But we have this parameter k that's going to allow us to weight the integral, to guarantee the function will have integral one.
00:35
It will be normalized, in other words, on this interval.
00:39
So we just want to find this value of k.
00:41
So k is going to be, well, k times this interval should be one.
00:53
So in other words, 1 over k should be equal to its interval...