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已知函数y=(log2 x/8)(log2 x/4) (2=
人气:141 ℃ 时间:2019-12-06 10:42:38
解答
y=(log2 x/8)(log2 x/4)=(log2 x - log2 8)(log2 x - log2 4)
=(log2 x - 3)(log2 x -2) 假设 m=log2 x 1=
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