2 Define Sequence Follows Ak 4a Use Strong Induction Prove N 20 2 Lak 2 2 3 Let P N Statem Q37042886

2. Define the sequence [an) as follows: ak-4a Use strong induction to prove that for n 20, an 2 lak-2 for 2 3. Let P(n) be the statement that a postage of n cents can be formed using just 4-cent true Use a strong induction proof to prove that Pn) is stamps and 5-cent stamps. for n 12. 2 Show transcribed image text 2. Define the sequence [an) as follows:

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