Question: Use mathematical induction to prove the formula for all integers n 1. 1. 2 + 4 + 6 + 8 + . . .

Use mathematical induction to prove the formula for all integers n ≥ 1.
1. 2 + 4 + 6 + 8 + . . . + 2n = n (n + 1)
2. 6 + 12 + 18 + 24 + . . . + 6n = 3n (n + 1)

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