a. Let's set a=3, b=1
In other words 
is odd, i.e. has remainder 1 when divided by 2. 
b. Let
There are 2n terms in the last factor. All the terms of the form
are odd. So when we add up an even number of them, we get an even number, call it 2m.
We've shown 
is divisible by four. 
Merry Christmas!
Answer:
The purpose of establishing colonial economy was to ensure a constant supply of raw materials, cheap labor, market, area for investment, and area for settlement. During the colonial economy period, African economy was transformed and made inferior.
The weighted moving average forecasting is suited particularly well for a stable/stationary series of data set.
<h3>What is a weighted moving average?</h3>
This refers to a technical indicator that assigns a greater weighting to the most recent data points and less weighting to data points in the distant past. This average is derived by multiplying each number in the data set by a predetermined weight and summing up the resulting values.
In conclusion, as the weighted moving average forecasting is mostly suited particularly well for a stable/stationary series of data set, then, it will give a more accurate result for the forecast.
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