If P (n) is the statement “n(n + 1) is even”,
Question:

If P (n) is the statement “n(n + 1) is even”, then what is P(3)?

Solution:

We have:

P(n): n(n + 1) is even.

Now,

P(3) = 3(3 + 1) = 12       (Even)

Therefore, P(3) is even.

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