3. Use deductive reasoning to prove the following statements. a) The sum of any three consecutive even numbers is divisible by six.

Let in the first even number
2n+2: the second even number
2n +4: the third
even number

b) The sum of any three odd numbers is an odd number.
Let 2rn -1 = the first odd number
Let 2m- 1 = the second odd number
Let 2p-1 = the third odd number

c) a product of any two odd numbers is an odd number.

d) the difference of the sequence of two consecutive even numbers is divisible by four