Some believe that religion is important because it provides social norms and answers to difficult questions about life and the m
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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!