Show that one and only one out of N N + 2 and + 4 is divisible by 3 Where n is any positive integer

Show that one and only one out of N N + 2 and + 4 is divisible by 3 Wh

1.	Show that one and only one out of N N + 2 and + 4 is divisible by 3 Where n is any positive integer
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