00:01
So in order to write this in cigmanitation, i'm first looking for a pattern.
00:05
Well, looking at the numerator, i see that, okay, now i'm fixing it's three squared, 16 is four squared, five, 25 to five squared, and so on and so forth.
00:15
So it seems to be if my first term is three, so i'm adding two to that term and then squaring it, right? if my second term is four add two and then square it, the numerator.
00:27
Okay.
00:29
Then what's happening in my denominator? okay, well, first what i see is that i'm subtracting by four each time.
00:36
Minus four, minus four, minus four, but then minus four, and then i get down to negative.
00:43
Well, recall that this is the same as adding negative three, adding negative seven, adding negative 11.
00:49
So tracking four, tracking four, tracking four...