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Prove or disprove: 1. Let n be an integer. If n>= 3, then n^3 > (n+1)^2...

Prove or disprove:

1. Let n be an integer. If n>= 3, then n^3 > (n+1)^2

2. Let n be an integer. If n>=0, then (n+1)^2>=2n^2

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