if n is a positive integer and 2^n + 2^n+1=k,what is 2^n+2 i

学习时间:2026-04-07 20:45:38 阅读：7460

if n is a positive integer and 2^n + 2^n+1=k,what is 2^n+2 in terms of

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2026-04-07 20:45:38

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翻译：如果n大于0（即n属于正区间）,而且2^n + 2^n+1=k,那么,用k来表示2^n+2为多少?由2^n + 2^n+1=k推出3*2^n =k,那么2^n=k/3,于是2*2*2^n=2*2*k/3,即 2^n+2=4k/3