00:01
So we need to use the properties in the geometric series.
00:07
So let's go ahead and get this into a summation first.
00:11
I want to find the sum of what this geometric series comes out to here.
00:15
So what we'll have is just this is z over 2 to the k equals zero power, that to the k, going to infinity.
00:28
All right, so now that we have this in geometric series format, this is our r value, which z over 2.
00:36
So we can go ahead and find the sums.
00:39
We have sum is equal to a1 over 1 minus r.
00:43
So it's going to be equal to 1 over 1 minus c over 2.
00:49
So basically the sum is c...