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QUESTION
Let n be a natural number. Prove that if (n^3 - 5n - 10) gt; 0 , then n gt;= 3. Use either direct proof, proof by contrapositive, or proof by cases....
Let n be a natural number. Prove that if (n^3 - 5n - 10) > 0 , then n >= 3. Use either direct proof, proof by contrapositive, or proof by cases.
