已知 1/log2A =log(2)(4)/log2(a/2) 如何求得 log2A=-1
1个回答
1/log2A =log(2)(4)/log2(a/2)
log2(a)=log2(a/2)/log2(4)=[log2(a)-1]/2
整理得log2(a)=-1
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