Use Mathematical Induction to Prove That $2 \mid \left( n ^ { 2 } + n \right) \text { for all } n \geq 0 \text {. }$

question 51

Essay

Use mathematical induction to prove that $2 \mid \left( n ^ { 2 } + n \right) \text { for all } n \geq 0 \text {. }$

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