Hi,
I want to double check this math problem for the spring break take-home test:
q: use sigma notation to express the series: 0.2 - .8 + 3.2 - 12.8 + 51.2 - ..........
A: I realized that the powers of 2 are at odd integers, then divided by 10.
[i.e. 2^1=2
2^3=8
etc.....]
but I'm trying to figure out how to express this [the fact only odd integers are used as the powers] in notation....
so far i have:
Code:
[infinity symbol] [2^k] (-1)^(k+1)
[Sigma symbol] _____________________
K= 1 10
thanks for the help,
will.