00:01
Okay, so here we have f of x, which is 4 over 3x plus 2 and c equals 1.
00:11
Okay, now first of all, let's keep in mind that we can rewrite f of x as follows as 4.
00:19
Actually, maybe it's better if we do like this.
00:22
4 over 3 multiplied by 1 over.
00:27
Now, instead of writing x only, we are going to write 1 minus 1 minus x and here plus 2.
00:37
Okay, now at this point what do we have? we have that this guy can be written as this sum, a sum with n running from 0 up to infinity of what? here we are going to have 1 minus x to the n and here again plus 2.
01:04
Okay perfect.
01:06
Now let me rewrite it.
01:10
So here we are going to have a sum with n running from 0 up to infinity of 4 over 3 to the negative multiplied by...