Prove the following using the principle of mathematical induction for all n ∈ N
12 + 32 + 52 +…+(2n –1)2 =
Let the given statement be P(n), as
First, we check if it is true for n = 1,
∴ It is true for n = 1.
Now we assume that it is true for some positive integer k, such that
…………..(1)
We shall prove that P(k + 1)is true,
Solving the left hand side with n = k + 1,
Which is equal to the Right hand side for n = k + 1.We proved that P(k + 1) is true.
Hence by principle of mathematical induction it is true for all n ∈ N.