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用数学归纳法证明:2n>2n+1(n∈N*,且n≥3).这是训练应用数学归纳法证明不等式的一道常规习题,但我们如能巧妙地抓住其结构特点,逆用等比数列求和公式
We use mathematical induction to prove that: 2n>2n+1 (n∈N*, and n≥3). This is a routine exercise for training to apply the mathematical induction to prove inequality, but if we can cleverly grasp its structural characteristics, the inverse Use the sum formula of the geometric progression