00:02
Hello, so here, well, zero is going to be the rational number, which has no reciprocal.
00:10
So the reciprocal of any number is just, well, one over that number, or the upside -down version.
00:15
So zero is zero over one.
00:16
So the reciprocal would be one over zero, but one over zero does not exist.
00:20
That is not a number that is undefined.
00:23
So therefore, zero is going to have no reciprocal.
00:28
And then we have here the reciprocal of the reciprocal of a number.
00:33
Well, that is going to be the number of itself, right? because let's say a number like, i don't know, three.
00:38
So the reciprocal of three is equal to one -third, but the reciprocal of one -third is equal to three.
00:45
So therefore, the reciprocal of a reciprocal is going to be equal to the number itself...