If a and b are the two odd positive integers such that a> b then one of the two numbers ( a+b) /2 and (a-b) /2is odd and even

If and are odd positive integers, they are one more than a non-negative even number, i.e. there exists such that

So, the first expression become

Similarly, we have

Now, the parity of these expressions depend on those of and . We have four cases:

If both m and n are even:

is odd, since is even, while is even

If one of the two is odd and the other is even:

is even, since is odd, while is odd

If both are odd:

is odd, since is even, while is even

So, in all cases, one between (a+b)/2 and (a-b)/2 is odd, and the other is even.

gmt is 4 hrs ahead of edt so just add four hours to 1: 14: 20 (minutes and seconds stay the same)

gmt is 5: 14: 20

hope this !

~just a girl in love with shawn mendes

inverse operation of addition