Answer: Prove that 4 + 7 + 10 + + (3n + 1) = _ n(3n + 5) 2 for all positive integers n
Chapter 12, Problem 33(choose chapter or problem)
Prove that 4 + 7 + 10 + + (3n + 1) = _ n(3n + 5) 2 for all positive integers n
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